Home / 781,872.16-1,079,085.30-437,839.12

Finding the Fourth Proportional to 781,872.16, 1,079,085.30 and 437,839.12

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Solution

The fourth proportional to 781,872.16, 1,079,085.30 and 437,839.12 is: 604,274.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,872.16 : 1,079,085.30 = 437,839.12 : x
  2. Step 2: Convert to fraction form
    781,872.16/1,079,085.30 = 437,839.12/x
  3. Step 3: Cross multiply
    781,872.16x = 1,079,085.30 × 437,839.12
  4. Step 4: Simplify right side
    781,872.16x = 472,465,758,156.94
  5. Step 5: Solve for x
    x = 472,465,758,156.94/781,872.16
  6. Step 6: Final answer
    x = 604,274.95

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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.