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Finding the Fourth Proportional to 675,275.12, 932,166.60 and 420,752.06

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Solution

The fourth proportional to 675,275.12, 932,166.60 and 420,752.06 is: 580,816.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,275.12 : 932,166.60 = 420,752.06 : x
  2. Step 2: Convert to fraction form
    675,275.12/932,166.60 = 420,752.06/x
  3. Step 3: Cross multiply
    675,275.12x = 932,166.60 × 420,752.06
  4. Step 4: Simplify right side
    675,275.12x = 392,211,017,213.20
  5. Step 5: Solve for x
    x = 392,211,017,213.20/675,275.12
  6. Step 6: Final answer
    x = 580,816.63

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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.