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Finding the Fourth Proportional to 1,208,386, 1,812,843.06 and 460,432

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Solution

The fourth proportional to 1,208,386, 1,812,843.06 and 460,432 is: 690,748.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,386 : 1,812,843.06 = 460,432 : x
  2. Step 2: Convert to fraction form
    1,208,386/1,812,843.06 = 460,432/x
  3. Step 3: Cross multiply
    1,208,386x = 1,812,843.06 × 460,432
  4. Step 4: Simplify right side
    1,208,386x = 834,690,955,801.92
  5. Step 5: Solve for x
    x = 834,690,955,801.92/1,208,386
  6. Step 6: Final answer
    x = 690,748.61

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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.