Home / 747,643.90-1,120,129.35-454,990.90

Finding the Fourth Proportional to 747,643.90, 1,120,129.35 and 454,990.90

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Solution

The fourth proportional to 747,643.90, 1,120,129.35 and 454,990.90 is: 681,673.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,643.90 : 1,120,129.35 = 454,990.90 : x
  2. Step 2: Convert to fraction form
    747,643.90/1,120,129.35 = 454,990.90/x
  3. Step 3: Cross multiply
    747,643.90x = 1,120,129.35 × 454,990.90
  4. Step 4: Simplify right side
    747,643.90x = 509,648,661,072.92
  5. Step 5: Solve for x
    x = 509,648,661,072.92/747,643.90
  6. Step 6: Final answer
    x = 681,673.00

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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.