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Finding the Fourth Proportional to 929,979, 1,394,981.46 and 265,131

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Solution

The fourth proportional to 929,979, 1,394,981.46 and 265,131 is: 397,700.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,979 : 1,394,981.46 = 265,131 : x
  2. Step 2: Convert to fraction form
    929,979/1,394,981.46 = 265,131/x
  3. Step 3: Cross multiply
    929,979x = 1,394,981.46 × 265,131
  4. Step 4: Simplify right side
    929,979x = 369,852,829,471.26
  5. Step 5: Solve for x
    x = 369,852,829,471.26/929,979
  6. Step 6: Final answer
    x = 397,700.19

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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.