Home / 677,149.28-934,460.04-371,220.10

Finding the Fourth Proportional to 677,149.28, 934,460.04 and 371,220.10

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Solution

The fourth proportional to 677,149.28, 934,460.04 and 371,220.10 is: 512,280.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,149.28 : 934,460.04 = 371,220.10 : x
  2. Step 2: Convert to fraction form
    677,149.28/934,460.04 = 371,220.10/x
  3. Step 3: Cross multiply
    677,149.28x = 934,460.04 × 371,220.10
  4. Step 4: Simplify right side
    677,149.28x = 346,890,349,494.80
  5. Step 5: Solve for x
    x = 346,890,349,494.80/677,149.28
  6. Step 6: Final answer
    x = 512,280.47

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Double scale
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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.