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Finding the Fourth Proportional to 672,951.70, 928,647.57 and 371,145.70

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Solution

The fourth proportional to 672,951.70, 928,647.57 and 371,145.70 is: 512,166.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,951.70 : 928,647.57 = 371,145.70 : x
  2. Step 2: Convert to fraction form
    672,951.70/928,647.57 = 371,145.70/x
  3. Step 3: Cross multiply
    672,951.70x = 928,647.57 × 371,145.70
  4. Step 4: Simplify right side
    672,951.70x = 344,663,552,420.95
  5. Step 5: Solve for x
    x = 344,663,552,420.95/672,951.70
  6. Step 6: Final answer
    x = 512,166.85

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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.