Home / 747,688.17-1,031,827.37-408,158.85

Finding the Fourth Proportional to 747,688.17, 1,031,827.37 and 408,158.85

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Solution

The fourth proportional to 747,688.17, 1,031,827.37 and 408,158.85 is: 563,268.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,688.17 : 1,031,827.37 = 408,158.85 : x
  2. Step 2: Convert to fraction form
    747,688.17/1,031,827.37 = 408,158.85/x
  3. Step 3: Cross multiply
    747,688.17x = 1,031,827.37 × 408,158.85
  4. Step 4: Simplify right side
    747,688.17x = 421,149,470,696.93
  5. Step 5: Solve for x
    x = 421,149,470,696.93/747,688.17
  6. Step 6: Final answer
    x = 563,268.87

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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.