Home / 489,542.40-734,581.20-190,034.88

Finding the Fourth Proportional to 489,542.40, 734,581.20 and 190,034.88

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Solution

The fourth proportional to 489,542.40, 734,581.20 and 190,034.88 is: 285,156.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,542.40 : 734,581.20 = 190,034.88 : x
  2. Step 2: Convert to fraction form
    489,542.40/734,581.20 = 190,034.88/x
  3. Step 3: Cross multiply
    489,542.40x = 734,581.20 × 190,034.88
  4. Step 4: Simplify right side
    489,542.40x = 139,596,050,192.26
  5. Step 5: Solve for x
    x = 139,596,050,192.26/489,542.40
  6. Step 6: Final answer
    x = 285,156.20

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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.