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Finding the Fourth Proportional to 626,910.26, 865,356.90 and 372,259.64

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Solution

The fourth proportional to 626,910.26, 865,356.90 and 372,259.64 is: 513,849.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,910.26 : 865,356.90 = 372,259.64 : x
  2. Step 2: Convert to fraction form
    626,910.26/865,356.90 = 372,259.64/x
  3. Step 3: Cross multiply
    626,910.26x = 865,356.90 × 372,259.64
  4. Step 4: Simplify right side
    626,910.26x = 322,137,448,065.52
  5. Step 5: Solve for x
    x = 322,137,448,065.52/626,910.26
  6. Step 6: Final answer
    x = 513,849.38

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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.