Home / 713,869.27-1,069,375.95-429,402.83

Finding the Fourth Proportional to 713,869.27, 1,069,375.95 and 429,402.83

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Solution

The fourth proportional to 713,869.27, 1,069,375.95 and 429,402.83 is: 643,245.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,869.27 : 1,069,375.95 = 429,402.83 : x
  2. Step 2: Convert to fraction form
    713,869.27/1,069,375.95 = 429,402.83/x
  3. Step 3: Cross multiply
    713,869.27x = 1,069,375.95 × 429,402.83
  4. Step 4: Simplify right side
    713,869.27x = 459,193,059,263.94
  5. Step 5: Solve for x
    x = 459,193,059,263.94/713,869.27
  6. Step 6: Final answer
    x = 643,245.31

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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.