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Finding the Fourth Proportional to 609,975.40, 914,963.10 and 452,511.40

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Solution

The fourth proportional to 609,975.40, 914,963.10 and 452,511.40 is: 678,767.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,975.40 : 914,963.10 = 452,511.40 : x
  2. Step 2: Convert to fraction form
    609,975.40/914,963.10 = 452,511.40/x
  3. Step 3: Cross multiply
    609,975.40x = 914,963.10 × 452,511.40
  4. Step 4: Simplify right side
    609,975.40x = 414,031,233,329.34
  5. Step 5: Solve for x
    x = 414,031,233,329.34/609,975.40
  6. Step 6: Final answer
    x = 678,767.10

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.