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Finding the Fourth Proportional to 898,159.86, 1,239,461.73 and 495,751.86

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Solution

The fourth proportional to 898,159.86, 1,239,461.73 and 495,751.86 is: 684,138.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,159.86 : 1,239,461.73 = 495,751.86 : x
  2. Step 2: Convert to fraction form
    898,159.86/1,239,461.73 = 495,751.86/x
  3. Step 3: Cross multiply
    898,159.86x = 1,239,461.73 × 495,751.86
  4. Step 4: Simplify right side
    898,159.86x = 614,465,458,046.32
  5. Step 5: Solve for x
    x = 614,465,458,046.32/898,159.86
  6. Step 6: Final answer
    x = 684,138.19

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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.