Home / 820,926.75-1,132,868.19-458,356.78

Finding the Fourth Proportional to 820,926.75, 1,132,868.19 and 458,356.78

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Solution

The fourth proportional to 820,926.75, 1,132,868.19 and 458,356.78 is: 632,526.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,926.75 : 1,132,868.19 = 458,356.78 : x
  2. Step 2: Convert to fraction form
    820,926.75/1,132,868.19 = 458,356.78/x
  3. Step 3: Cross multiply
    820,926.75x = 1,132,868.19 × 458,356.78
  4. Step 4: Simplify right side
    820,926.75x = 519,257,815,732.83
  5. Step 5: Solve for x
    x = 519,257,815,732.83/820,926.75
  6. Step 6: Final answer
    x = 632,526.37

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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.