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Finding the Fourth Proportional to 609,976.40, 914,964.60 and 452,512.40

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Solution

The fourth proportional to 609,976.40, 914,964.60 and 452,512.40 is: 678,768.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,976.40 : 914,964.60 = 452,512.40 : x
  2. Step 2: Convert to fraction form
    609,976.40/914,964.60 = 452,512.40/x
  3. Step 3: Cross multiply
    609,976.40x = 914,964.60 × 452,512.40
  4. Step 4: Simplify right side
    609,976.40x = 414,032,827,061.04
  5. Step 5: Solve for x
    x = 414,032,827,061.04/609,976.40
  6. Step 6: Final answer
    x = 678,768.60

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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.