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Finding the Fourth Proportional to 586,729.10, 809,658.15 and 360,330.86

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Solution

The fourth proportional to 586,729.10, 809,658.15 and 360,330.86 is: 497,239.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,729.10 : 809,658.15 = 360,330.86 : x
  2. Step 2: Convert to fraction form
    586,729.10/809,658.15 = 360,330.86/x
  3. Step 3: Cross multiply
    586,729.10x = 809,658.15 × 360,330.86
  4. Step 4: Simplify right side
    586,729.10x = 291,744,813,447.22
  5. Step 5: Solve for x
    x = 291,744,813,447.22/586,729.10
  6. Step 6: Final answer
    x = 497,239.38

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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.