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Finding the Fourth Proportional to 677,159.28, 934,459.55 and 371,225.20

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Solution

The fourth proportional to 677,159.28, 934,459.55 and 371,225.20 is: 512,279.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,159.28 : 934,459.55 = 371,225.20 : x
  2. Step 2: Convert to fraction form
    677,159.28/934,459.55 = 371,225.20/x
  3. Step 3: Cross multiply
    677,159.28x = 934,459.55 × 371,225.20
  4. Step 4: Simplify right side
    677,159.28x = 346,894,934,044.70
  5. Step 5: Solve for x
    x = 346,894,934,044.70/677,159.28
  6. Step 6: Final answer
    x = 512,279.68

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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.