Home / 820,985.28-1,132,947.93-458,414.85

Finding the Fourth Proportional to 820,985.28, 1,132,947.93 and 458,414.85

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Solution

The fourth proportional to 820,985.28, 1,132,947.93 and 458,414.85 is: 632,605.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,985.28 : 1,132,947.93 = 458,414.85 : x
  2. Step 2: Convert to fraction form
    820,985.28/1,132,947.93 = 458,414.85/x
  3. Step 3: Cross multiply
    820,985.28x = 1,132,947.93 × 458,414.85
  4. Step 4: Simplify right side
    820,985.28x = 519,360,155,388.76
  5. Step 5: Solve for x
    x = 519,360,155,388.76/820,985.28
  6. Step 6: Final answer
    x = 632,605.93

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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.