Home / 820,321.95-1,131,875.24-471,394.95

Finding the Fourth Proportional to 820,321.95, 1,131,875.24 and 471,394.95

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Solution

The fourth proportional to 820,321.95, 1,131,875.24 and 471,394.95 is: 650,427.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,321.95 : 1,131,875.24 = 471,394.95 : x
  2. Step 2: Convert to fraction form
    820,321.95/1,131,875.24 = 471,394.95/x
  3. Step 3: Cross multiply
    820,321.95x = 1,131,875.24 × 471,394.95
  4. Step 4: Simplify right side
    820,321.95x = 533,560,269,809.06
  5. Step 5: Solve for x
    x = 533,560,269,809.06/820,321.95
  6. Step 6: Final answer
    x = 650,427.88

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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.