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Finding the Fourth Proportional to 530,500.61, 732,090.92 and 288,785.02

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Solution

The fourth proportional to 530,500.61, 732,090.92 and 288,785.02 is: 398,523.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,500.61 : 732,090.92 = 288,785.02 : x
  2. Step 2: Convert to fraction form
    530,500.61/732,090.92 = 288,785.02/x
  3. Step 3: Cross multiply
    530,500.61x = 732,090.92 × 288,785.02
  4. Step 4: Simplify right side
    530,500.61x = 211,416,890,974.02
  5. Step 5: Solve for x
    x = 211,416,890,974.02/530,500.61
  6. Step 6: Final answer
    x = 398,523.37

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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.