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Finding the Fourth Proportional to 689,168.71, 950,913.42 and 402,633.43

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Solution

The fourth proportional to 689,168.71, 950,913.42 and 402,633.43 is: 555,552.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,168.71 : 950,913.42 = 402,633.43 : x
  2. Step 2: Convert to fraction form
    689,168.71/950,913.42 = 402,633.43/x
  3. Step 3: Cross multiply
    689,168.71x = 950,913.42 × 402,633.43
  4. Step 4: Simplify right side
    689,168.71x = 382,869,535,654.17
  5. Step 5: Solve for x
    x = 382,869,535,654.17/689,168.71
  6. Step 6: Final answer
    x = 555,552.70

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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.