Home / 747,655.90-1,120,147.35-455,002.90

Finding the Fourth Proportional to 747,655.90, 1,120,147.35 and 455,002.90

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Solution

The fourth proportional to 747,655.90, 1,120,147.35 and 455,002.90 is: 681,690.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,655.90 : 1,120,147.35 = 455,002.90 : x
  2. Step 2: Convert to fraction form
    747,655.90/1,120,147.35 = 455,002.90/x
  3. Step 3: Cross multiply
    747,655.90x = 1,120,147.35 × 455,002.90
  4. Step 4: Simplify right side
    747,655.90x = 509,670,292,677.32
  5. Step 5: Solve for x
    x = 509,670,292,677.32/747,655.90
  6. Step 6: Final answer
    x = 681,690.99

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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.