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Finding the Fourth Proportional to 524,622.30, 788,683.05 and 447,639.90

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Solution

The fourth proportional to 524,622.30, 788,683.05 and 447,639.90 is: 672,952.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,622.30 : 788,683.05 = 447,639.90 : x
  2. Step 2: Convert to fraction form
    524,622.30/788,683.05 = 447,639.90/x
  3. Step 3: Cross multiply
    524,622.30x = 788,683.05 × 447,639.90
  4. Step 4: Simplify right side
    524,622.30x = 353,046,001,633.70
  5. Step 5: Solve for x
    x = 353,046,001,633.70/524,622.30
  6. Step 6: Final answer
    x = 672,952.72

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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.