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Finding the Fourth Proportional to 490,275.60, 676,659.06 and 458,257.92

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Solution

The fourth proportional to 490,275.60, 676,659.06 and 458,257.92 is: 632,469.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,275.60 : 676,659.06 = 458,257.92 : x
  2. Step 2: Convert to fraction form
    490,275.60/676,659.06 = 458,257.92/x
  3. Step 3: Cross multiply
    490,275.60x = 676,659.06 × 458,257.92
  4. Step 4: Simplify right side
    490,275.60x = 310,084,373,384.76
  5. Step 5: Solve for x
    x = 310,084,373,384.76/490,275.60
  6. Step 6: Final answer
    x = 632,469.52

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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.