Home / 1,187,470.20-1,781,205.30-346,049.40

Finding the Fourth Proportional to 1,187,470.20, 1,781,205.30 and 346,049.40

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Solution

The fourth proportional to 1,187,470.20, 1,781,205.30 and 346,049.40 is: 519,074.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,470.20 : 1,781,205.30 = 346,049.40 : x
  2. Step 2: Convert to fraction form
    1,187,470.20/1,781,205.30 = 346,049.40/x
  3. Step 3: Cross multiply
    1,187,470.20x = 1,781,205.30 × 346,049.40
  4. Step 4: Simplify right side
    1,187,470.20x = 616,385,025,341.82
  5. Step 5: Solve for x
    x = 616,385,025,341.82/1,187,470.20
  6. Step 6: Final answer
    x = 519,074.10

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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.