Home / 757,750.92-1,045,691.10-418,219.20

Finding the Fourth Proportional to 757,750.92, 1,045,691.10 and 418,219.20

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Solution

The fourth proportional to 757,750.92, 1,045,691.10 and 418,219.20 is: 577,139.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,750.92 : 1,045,691.10 = 418,219.20 : x
  2. Step 2: Convert to fraction form
    757,750.92/1,045,691.10 = 418,219.20/x
  3. Step 3: Cross multiply
    757,750.92x = 1,045,691.10 × 418,219.20
  4. Step 4: Simplify right side
    757,750.92x = 437,328,095,289.12
  5. Step 5: Solve for x
    x = 437,328,095,289.12/757,750.92
  6. Step 6: Final answer
    x = 577,139.64

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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.