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Finding the Fourth Proportional to 826,616.28, 1,140,730.02 and 464,040.84

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Solution

The fourth proportional to 826,616.28, 1,140,730.02 and 464,040.84 is: 640,376.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,616.28 : 1,140,730.02 = 464,040.84 : x
  2. Step 2: Convert to fraction form
    826,616.28/1,140,730.02 = 464,040.84/x
  3. Step 3: Cross multiply
    826,616.28x = 1,140,730.02 × 464,040.84
  4. Step 4: Simplify right side
    826,616.28x = 529,345,316,694.02
  5. Step 5: Solve for x
    x = 529,345,316,694.02/826,616.28
  6. Step 6: Final answer
    x = 640,376.11

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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.