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Finding the Fourth Proportional to 675,114.04, 932,061.64 and 420,809.68

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Solution

The fourth proportional to 675,114.04, 932,061.64 and 420,809.68 is: 580,969.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,114.04 : 932,061.64 = 420,809.68 : x
  2. Step 2: Convert to fraction form
    675,114.04/932,061.64 = 420,809.68/x
  3. Step 3: Cross multiply
    675,114.04x = 932,061.64 × 420,809.68
  4. Step 4: Simplify right side
    675,114.04x = 392,220,560,468.68
  5. Step 5: Solve for x
    x = 392,220,560,468.68/675,114.04
  6. Step 6: Final answer
    x = 580,969.34

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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.