Home / 747,439.95-1,121,509.85-326,661.15

Finding the Fourth Proportional to 747,439.95, 1,121,509.85 and 326,661.15

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Solution

The fourth proportional to 747,439.95, 1,121,509.85 and 326,661.15 is: 490,144.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,439.95 : 1,121,509.85 = 326,661.15 : x
  2. Step 2: Convert to fraction form
    747,439.95/1,121,509.85 = 326,661.15/x
  3. Step 3: Cross multiply
    747,439.95x = 1,121,509.85 × 326,661.15
  4. Step 4: Simplify right side
    747,439.95x = 366,353,695,704.02
  5. Step 5: Solve for x
    x = 366,353,695,704.02/747,439.95
  6. Step 6: Final answer
    x = 490,144.65

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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.