Home / 487,084.95-672,148.26-269,280.57

Finding the Fourth Proportional to 487,084.95, 672,148.26 and 269,280.57

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Solution

The fourth proportional to 487,084.95, 672,148.26 and 269,280.57 is: 371,591.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,084.95 : 672,148.26 = 269,280.57 : x
  2. Step 2: Convert to fraction form
    487,084.95/672,148.26 = 269,280.57/x
  3. Step 3: Cross multiply
    487,084.95x = 672,148.26 × 269,280.57
  4. Step 4: Simplify right side
    487,084.95x = 180,996,466,577.31
  5. Step 5: Solve for x
    x = 180,996,466,577.31/487,084.95
  6. Step 6: Final answer
    x = 371,591.17

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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.