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Finding the Fourth Proportional to 704,683.70, 972,466.12 and 382,393.86

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Solution

The fourth proportional to 704,683.70, 972,466.12 and 382,393.86 is: 527,704.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,683.70 : 972,466.12 = 382,393.86 : x
  2. Step 2: Convert to fraction form
    704,683.70/972,466.12 = 382,393.86/x
  3. Step 3: Cross multiply
    704,683.70x = 972,466.12 × 382,393.86
  4. Step 4: Simplify right side
    704,683.70x = 371,865,073,346.02
  5. Step 5: Solve for x
    x = 371,865,073,346.02/704,683.70
  6. Step 6: Final answer
    x = 527,704.95

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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.