Home / 489,822.40-734,733.60-134,891.20

Finding the Fourth Proportional to 489,822.40, 734,733.60 and 134,891.20

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Solution

The fourth proportional to 489,822.40, 734,733.60 and 134,891.20 is: 202,336.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,822.40 : 734,733.60 = 134,891.20 : x
  2. Step 2: Convert to fraction form
    489,822.40/734,733.60 = 134,891.20/x
  3. Step 3: Cross multiply
    489,822.40x = 734,733.60 × 134,891.20
  4. Step 4: Simplify right side
    489,822.40x = 99,109,096,984.32
  5. Step 5: Solve for x
    x = 99,109,096,984.32/489,822.40
  6. Step 6: Final answer
    x = 202,336.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.