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Finding the Fourth Proportional to 530,464.30, 732,060.12 and 288,735.19

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Solution

The fourth proportional to 530,464.30, 732,060.12 and 288,735.19 is: 398,465.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,464.30 : 732,060.12 = 288,735.19 : x
  2. Step 2: Convert to fraction form
    530,464.30/732,060.12 = 288,735.19/x
  3. Step 3: Cross multiply
    530,464.30x = 732,060.12 × 288,735.19
  4. Step 4: Simplify right side
    530,464.30x = 211,371,517,839.62
  5. Step 5: Solve for x
    x = 211,371,517,839.62/530,464.30
  6. Step 6: Final answer
    x = 398,465.11

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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.