Home / 672,943.04-928,635.72-371,137.04

Finding the Fourth Proportional to 672,943.04, 928,635.72 and 371,137.04

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Solution

The fourth proportional to 672,943.04, 928,635.72 and 371,137.04 is: 512,154.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,943.04 : 928,635.72 = 371,137.04 : x
  2. Step 2: Convert to fraction form
    672,943.04/928,635.72 = 371,137.04/x
  3. Step 3: Cross multiply
    672,943.04x = 928,635.72 × 371,137.04
  4. Step 4: Simplify right side
    672,943.04x = 344,651,107,715.89
  5. Step 5: Solve for x
    x = 344,651,107,715.89/672,943.04
  6. Step 6: Final answer
    x = 512,154.95

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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.