Home / 629,140.39-868,253.24-357,104.72

Finding the Fourth Proportional to 629,140.39, 868,253.24 and 357,104.72

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Solution

The fourth proportional to 629,140.39, 868,253.24 and 357,104.72 is: 492,826.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,140.39 : 868,253.24 = 357,104.72 : x
  2. Step 2: Convert to fraction form
    629,140.39/868,253.24 = 357,104.72/x
  3. Step 3: Cross multiply
    629,140.39x = 868,253.24 × 357,104.72
  4. Step 4: Simplify right side
    629,140.39x = 310,057,330,159.29
  5. Step 5: Solve for x
    x = 310,057,330,159.29/629,140.39
  6. Step 6: Final answer
    x = 492,826.94

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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.