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Finding the Fourth Proportional to 765,760.86, 1,056,750.03 and 426,221.82

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Solution

The fourth proportional to 765,760.86, 1,056,750.03 and 426,221.82 is: 588,186.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,760.86 : 1,056,750.03 = 426,221.82 : x
  2. Step 2: Convert to fraction form
    765,760.86/1,056,750.03 = 426,221.82/x
  3. Step 3: Cross multiply
    765,760.86x = 1,056,750.03 × 426,221.82
  4. Step 4: Simplify right side
    765,760.86x = 450,409,921,071.66
  5. Step 5: Solve for x
    x = 450,409,921,071.66/765,760.86
  6. Step 6: Final answer
    x = 588,186.14

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1.5x scale

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.