Home / 876,730.44-1,209,876.06-489,551.84

Finding the Fourth Proportional to 876,730.44, 1,209,876.06 and 489,551.84

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Solution

The fourth proportional to 876,730.44, 1,209,876.06 and 489,551.84 is: 675,574.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,730.44 : 1,209,876.06 = 489,551.84 : x
  2. Step 2: Convert to fraction form
    876,730.44/1,209,876.06 = 489,551.84/x
  3. Step 3: Cross multiply
    876,730.44x = 1,209,876.06 × 489,551.84
  4. Step 4: Simplify right side
    876,730.44x = 592,297,051,344.95
  5. Step 5: Solve for x
    x = 592,297,051,344.95/876,730.44
  6. Step 6: Final answer
    x = 675,574.87

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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.