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Finding the Fourth Proportional to 672,950.70, 928,646.19 and 371,144.70

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Solution

The fourth proportional to 672,950.70, 928,646.19 and 371,144.70 is: 512,165.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,950.70 : 928,646.19 = 371,144.70 : x
  2. Step 2: Convert to fraction form
    672,950.70/928,646.19 = 371,144.70/x
  3. Step 3: Cross multiply
    672,950.70x = 928,646.19 × 371,144.70
  4. Step 4: Simplify right side
    672,950.70x = 344,662,111,593.69
  5. Step 5: Solve for x
    x = 344,662,111,593.69/672,950.70
  6. Step 6: Final answer
    x = 512,165.47

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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.