Home / 756,411.98-1,043,959.68-498,247.56

Finding the Fourth Proportional to 756,411.98, 1,043,959.68 and 498,247.56

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Solution

The fourth proportional to 756,411.98, 1,043,959.68 and 498,247.56 is: 687,654.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,411.98 : 1,043,959.68 = 498,247.56 : x
  2. Step 2: Convert to fraction form
    756,411.98/1,043,959.68 = 498,247.56/x
  3. Step 3: Cross multiply
    756,411.98x = 1,043,959.68 × 498,247.56
  4. Step 4: Simplify right side
    756,411.98x = 520,150,363,298.38
  5. Step 5: Solve for x
    x = 520,150,363,298.38/756,411.98
  6. Step 6: Final answer
    x = 687,654.85

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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.