Home / 752,612.08-1,038,605.21-408,447.92

Finding the Fourth Proportional to 752,612.08, 1,038,605.21 and 408,447.92

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Solution

The fourth proportional to 752,612.08, 1,038,605.21 and 408,447.92 is: 563,658.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,612.08 : 1,038,605.21 = 408,447.92 : x
  2. Step 2: Convert to fraction form
    752,612.08/1,038,605.21 = 408,447.92/x
  3. Step 3: Cross multiply
    752,612.08x = 1,038,605.21 × 408,447.92
  4. Step 4: Simplify right side
    752,612.08x = 424,216,137,725.66
  5. Step 5: Solve for x
    x = 424,216,137,725.66/752,612.08
  6. Step 6: Final answer
    x = 563,658.42

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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.