Home / 747,800.65-1,031,959.58-408,268.90

Finding the Fourth Proportional to 747,800.65, 1,031,959.58 and 408,268.90

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Solution

The fourth proportional to 747,800.65, 1,031,959.58 and 408,268.90 is: 563,408.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,800.65 : 1,031,959.58 = 408,268.90 : x
  2. Step 2: Convert to fraction form
    747,800.65/1,031,959.58 = 408,268.90/x
  3. Step 3: Cross multiply
    747,800.65x = 1,031,959.58 × 408,268.90
  4. Step 4: Simplify right side
    747,800.65x = 421,317,000,529.72
  5. Step 5: Solve for x
    x = 421,317,000,529.72/747,800.65
  6. Step 6: Final answer
    x = 563,408.18

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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.