Home / 753,130.90-1,128,712.20-303,483.70

Finding the Fourth Proportional to 753,130.90, 1,128,712.20 and 303,483.70

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Solution

The fourth proportional to 753,130.90, 1,128,712.20 and 303,483.70 is: 454,828.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,130.90 : 1,128,712.20 = 303,483.70 : x
  2. Step 2: Convert to fraction form
    753,130.90/1,128,712.20 = 303,483.70/x
  3. Step 3: Cross multiply
    753,130.90x = 1,128,712.20 × 303,483.70
  4. Step 4: Simplify right side
    753,130.90x = 342,545,754,691.14
  5. Step 5: Solve for x
    x = 342,545,754,691.14/753,130.90
  6. Step 6: Final answer
    x = 454,828.97

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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.