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Finding the Fourth Proportional to 627,265, 865,608.85 and 369,157.13

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Solution

The fourth proportional to 627,265, 865,608.85 and 369,157.13 is: 509,426.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,265 : 865,608.85 = 369,157.13 : x
  2. Step 2: Convert to fraction form
    627,265/865,608.85 = 369,157.13/x
  3. Step 3: Cross multiply
    627,265x = 865,608.85 × 369,157.13
  4. Step 4: Simplify right side
    627,265x = 319,545,678,768.60
  5. Step 5: Solve for x
    x = 319,545,678,768.60/627,265
  6. Step 6: Final answer
    x = 509,426.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.