Home / 752,142.17-1,128,215.69-191,176.67

Finding the Fourth Proportional to 752,142.17, 1,128,215.69 and 191,176.67

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Solution

The fourth proportional to 752,142.17, 1,128,215.69 and 191,176.67 is: 286,765.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,142.17 : 1,128,215.69 = 191,176.67 : x
  2. Step 2: Convert to fraction form
    752,142.17/1,128,215.69 = 191,176.67/x
  3. Step 3: Cross multiply
    752,142.17x = 1,128,215.69 × 191,176.67
  4. Step 4: Simplify right side
    752,142.17x = 215,688,512,058.99
  5. Step 5: Solve for x
    x = 215,688,512,058.99/752,142.17
  6. Step 6: Final answer
    x = 286,765.62

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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.