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Finding the Fourth Proportional to 768,304.92, 1,060,264.74 and 424,134.72

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Solution

The fourth proportional to 768,304.92, 1,060,264.74 and 424,134.72 is: 585,308.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,304.92 : 1,060,264.74 = 424,134.72 : x
  2. Step 2: Convert to fraction form
    768,304.92/1,060,264.74 = 424,134.72/x
  3. Step 3: Cross multiply
    768,304.92x = 1,060,264.74 × 424,134.72
  4. Step 4: Simplify right side
    768,304.92x = 449,695,088,625.77
  5. Step 5: Solve for x
    x = 449,695,088,625.77/768,304.92
  6. Step 6: Final answer
    x = 585,308.09

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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.