Home / 876,272.40-1,208,972.52-489,024.90

Finding the Fourth Proportional to 876,272.40, 1,208,972.52 and 489,024.90

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Solution

The fourth proportional to 876,272.40, 1,208,972.52 and 489,024.90 is: 674,696.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,272.40 : 1,208,972.52 = 489,024.90 : x
  2. Step 2: Convert to fraction form
    876,272.40/1,208,972.52 = 489,024.90/x
  3. Step 3: Cross multiply
    876,272.40x = 1,208,972.52 × 489,024.90
  4. Step 4: Simplify right side
    876,272.40x = 591,217,665,695.75
  5. Step 5: Solve for x
    x = 591,217,665,695.75/876,272.40
  6. Step 6: Final answer
    x = 674,696.21

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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.