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Finding the Fourth Proportional to 440,492.28, 660,715.74 and 258,224.27

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Solution

The fourth proportional to 440,492.28, 660,715.74 and 258,224.27 is: 387,323.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,492.28 : 660,715.74 = 258,224.27 : x
  2. Step 2: Convert to fraction form
    440,492.28/660,715.74 = 258,224.27/x
  3. Step 3: Cross multiply
    440,492.28x = 660,715.74 × 258,224.27
  4. Step 4: Simplify right side
    440,492.28x = 170,612,836,335.43
  5. Step 5: Solve for x
    x = 170,612,836,335.43/440,492.28
  6. Step 6: Final answer
    x = 387,323.10

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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.