Home / 781,753.79-1,078,838.49-437,581.16

Finding the Fourth Proportional to 781,753.79, 1,078,838.49 and 437,581.16

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Solution

The fourth proportional to 781,753.79, 1,078,838.49 and 437,581.16 is: 603,872.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,753.79 : 1,078,838.49 = 437,581.16 : x
  2. Step 2: Convert to fraction form
    781,753.79/1,078,838.49 = 437,581.16/x
  3. Step 3: Cross multiply
    781,753.79x = 1,078,838.49 × 437,581.16
  4. Step 4: Simplify right side
    781,753.79x = 472,079,392,512.66
  5. Step 5: Solve for x
    x = 472,079,392,512.66/781,753.79
  6. Step 6: Final answer
    x = 603,872.22

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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.