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Finding the Fourth Proportional to 340,470.64, 506,686.72 and 329,118.69

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Solution

The fourth proportional to 340,470.64, 506,686.72 and 329,118.69 is: 489,792.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,470.64 : 506,686.72 = 329,118.69 : x
  2. Step 2: Convert to fraction form
    340,470.64/506,686.72 = 329,118.69/x
  3. Step 3: Cross multiply
    340,470.64x = 506,686.72 × 329,118.69
  4. Step 4: Simplify right side
    340,470.64x = 166,760,070,295.53
  5. Step 5: Solve for x
    x = 166,760,070,295.53/340,470.64
  6. Step 6: Final answer
    x = 489,792.80

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.