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Finding the Fourth Proportional to 1,146,721.94, 1,721,411.67 and 615,280.94

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Solution

The fourth proportional to 1,146,721.94, 1,721,411.67 and 615,280.94 is: 923,634.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,146,721.94 : 1,721,411.67 = 615,280.94 : x
  2. Step 2: Convert to fraction form
    1,146,721.94/1,721,411.67 = 615,280.94/x
  3. Step 3: Cross multiply
    1,146,721.94x = 1,721,411.67 × 615,280.94
  4. Step 4: Simplify right side
    1,146,721.94x = 1,059,151,794,748.10
  5. Step 5: Solve for x
    x = 1,059,151,794,748.10/1,146,721.94
  6. Step 6: Final answer
    x = 923,634.37

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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.