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Finding the Fourth Proportional to 816,797.95, 1,127,016 and 477,200.59

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Solution

The fourth proportional to 816,797.95, 1,127,016 and 477,200.59 is: 658,440.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,797.95 : 1,127,016 = 477,200.59 : x
  2. Step 2: Convert to fraction form
    816,797.95/1,127,016 = 477,200.59/x
  3. Step 3: Cross multiply
    816,797.95x = 1,127,016 × 477,200.59
  4. Step 4: Simplify right side
    816,797.95x = 537,812,700,139.44
  5. Step 5: Solve for x
    x = 537,812,700,139.44/816,797.95
  6. Step 6: Final answer
    x = 658,440.32

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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.