Home / 747,800.15-1,031,958.88-408,268.40

Finding the Fourth Proportional to 747,800.15, 1,031,958.88 and 408,268.40

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Solution

The fourth proportional to 747,800.15, 1,031,958.88 and 408,268.40 is: 563,407.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,800.15 : 1,031,958.88 = 408,268.40 : x
  2. Step 2: Convert to fraction form
    747,800.15/1,031,958.88 = 408,268.40/x
  3. Step 3: Cross multiply
    747,800.15x = 1,031,958.88 × 408,268.40
  4. Step 4: Simplify right side
    747,800.15x = 421,316,202,724.21
  5. Step 5: Solve for x
    x = 421,316,202,724.21/747,800.15
  6. Step 6: Final answer
    x = 563,407.49

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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.