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Finding the Fourth Proportional to 865,602.95, 1,194,865.28 and 774,798.71

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Solution

The fourth proportional to 865,602.95, 1,194,865.28 and 774,798.71 is: 1,069,520.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,602.95 : 1,194,865.28 = 774,798.71 : x
  2. Step 2: Convert to fraction form
    865,602.95/1,194,865.28 = 774,798.71/x
  3. Step 3: Cross multiply
    865,602.95x = 1,194,865.28 × 774,798.71
  4. Step 4: Simplify right side
    865,602.95x = 925,780,067,719.47
  5. Step 5: Solve for x
    x = 925,780,067,719.47/865,602.95
  6. Step 6: Final answer
    x = 1,069,520.47

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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.