Home / 752,076.90-1,127,131.20-302,429.70

Finding the Fourth Proportional to 752,076.90, 1,127,131.20 and 302,429.70

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Solution

The fourth proportional to 752,076.90, 1,127,131.20 and 302,429.70 is: 453,248.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,076.90 : 1,127,131.20 = 302,429.70 : x
  2. Step 2: Convert to fraction form
    752,076.90/1,127,131.20 = 302,429.70/x
  3. Step 3: Cross multiply
    752,076.90x = 1,127,131.20 × 302,429.70
  4. Step 4: Simplify right side
    752,076.90x = 340,877,950,676.64
  5. Step 5: Solve for x
    x = 340,877,950,676.64/752,076.90
  6. Step 6: Final answer
    x = 453,248.80

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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.