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Finding the Fourth Proportional to 704,572.61, 972,206.82 and 394,459.16

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Solution

The fourth proportional to 704,572.61, 972,206.82 and 394,459.16 is: 544,295.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,572.61 : 972,206.82 = 394,459.16 : x
  2. Step 2: Convert to fraction form
    704,572.61/972,206.82 = 394,459.16/x
  3. Step 3: Cross multiply
    704,572.61x = 972,206.82 × 394,459.16
  4. Step 4: Simplify right side
    704,572.61x = 383,495,880,702.44
  5. Step 5: Solve for x
    x = 383,495,880,702.44/704,572.61
  6. Step 6: Final answer
    x = 544,295.76

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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.