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Finding the Fourth Proportional to 452,507.40, 678,761.10 and 242,555.40

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Solution

The fourth proportional to 452,507.40, 678,761.10 and 242,555.40 is: 363,833.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,507.40 : 678,761.10 = 242,555.40 : x
  2. Step 2: Convert to fraction form
    452,507.40/678,761.10 = 242,555.40/x
  3. Step 3: Cross multiply
    452,507.40x = 678,761.10 × 242,555.40
  4. Step 4: Simplify right side
    452,507.40x = 164,637,170,114.94
  5. Step 5: Solve for x
    x = 164,637,170,114.94/452,507.40
  6. Step 6: Final answer
    x = 363,833.10

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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.