Home / 876,631.88-1,209,740.24-489,453.25

Finding the Fourth Proportional to 876,631.88, 1,209,740.24 and 489,453.25

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Solution

The fourth proportional to 876,631.88, 1,209,740.24 and 489,453.25 is: 675,438.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,631.88 : 1,209,740.24 = 489,453.25 : x
  2. Step 2: Convert to fraction form
    876,631.88/1,209,740.24 = 489,453.25/x
  3. Step 3: Cross multiply
    876,631.88x = 1,209,740.24 × 489,453.25
  4. Step 4: Simplify right side
    876,631.88x = 592,111,289,387.97
  5. Step 5: Solve for x
    x = 592,111,289,387.97/876,631.88
  6. Step 6: Final answer
    x = 675,438.92

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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.