Home / 747,441.95-1,121,512.85-326,663.15

Finding the Fourth Proportional to 747,441.95, 1,121,512.85 and 326,663.15

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Solution

The fourth proportional to 747,441.95, 1,121,512.85 and 326,663.15 is: 490,147.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,441.95 : 1,121,512.85 = 326,663.15 : x
  2. Step 2: Convert to fraction form
    747,441.95/1,121,512.85 = 326,663.15/x
  3. Step 3: Cross multiply
    747,441.95x = 1,121,512.85 × 326,663.15
  4. Step 4: Simplify right side
    747,441.95x = 366,356,920,346.48
  5. Step 5: Solve for x
    x = 366,356,920,346.48/747,441.95
  6. Step 6: Final answer
    x = 490,147.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.