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Finding the Fourth Proportional to 630,147.40, 945,221.10 and 531,732.40

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Solution

The fourth proportional to 630,147.40, 945,221.10 and 531,732.40 is: 797,598.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,147.40 : 945,221.10 = 531,732.40 : x
  2. Step 2: Convert to fraction form
    630,147.40/945,221.10 = 531,732.40/x
  3. Step 3: Cross multiply
    630,147.40x = 945,221.10 × 531,732.40
  4. Step 4: Simplify right side
    630,147.40x = 502,604,684,033.64
  5. Step 5: Solve for x
    x = 502,604,684,033.64/630,147.40
  6. Step 6: Final answer
    x = 797,598.60

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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.