Home / 1,079,800-1,490,124.12-627,120.16

Finding the Fourth Proportional to 1,079,800, 1,490,124.12 and 627,120.16

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Solution

The fourth proportional to 1,079,800, 1,490,124.12 and 627,120.16 is: 865,425.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,800 : 1,490,124.12 = 627,120.16 : x
  2. Step 2: Convert to fraction form
    1,079,800/1,490,124.12 = 627,120.16/x
  3. Step 3: Cross multiply
    1,079,800x = 1,490,124.12 × 627,120.16
  4. Step 4: Simplify right side
    1,079,800x = 934,486,876,554.26
  5. Step 5: Solve for x
    x = 934,486,876,554.26/1,079,800
  6. Step 6: Final answer
    x = 865,425.89

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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.