Home / 1,139,246.59-1,707,864.21-429,772.87

Finding the Fourth Proportional to 1,139,246.59, 1,707,864.21 and 429,772.87

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Solution

The fourth proportional to 1,139,246.59, 1,707,864.21 and 429,772.87 is: 644,279.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,246.59 : 1,707,864.21 = 429,772.87 : x
  2. Step 2: Convert to fraction form
    1,139,246.59/1,707,864.21 = 429,772.87/x
  3. Step 3: Cross multiply
    1,139,246.59x = 1,707,864.21 × 429,772.87
  4. Step 4: Simplify right side
    1,139,246.59x = 733,993,703,101.98
  5. Step 5: Solve for x
    x = 733,993,703,101.98/1,139,246.59
  6. Step 6: Final answer
    x = 644,279.92

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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.