Home / 677,355.40-1,016,033.10-341,432.20

Finding the Fourth Proportional to 677,355.40, 1,016,033.10 and 341,432.20

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Solution

The fourth proportional to 677,355.40, 1,016,033.10 and 341,432.20 is: 512,148.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,355.40 : 1,016,033.10 = 341,432.20 : x
  2. Step 2: Convert to fraction form
    677,355.40/1,016,033.10 = 341,432.20/x
  3. Step 3: Cross multiply
    677,355.40x = 1,016,033.10 × 341,432.20
  4. Step 4: Simplify right side
    677,355.40x = 346,906,416,605.82
  5. Step 5: Solve for x
    x = 346,906,416,605.82/677,355.40
  6. Step 6: Final answer
    x = 512,148.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.