Home / 987,010.24-1,480,569.30-313,042.72

Finding the Fourth Proportional to 987,010.24, 1,480,569.30 and 313,042.72

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Solution

The fourth proportional to 987,010.24, 1,480,569.30 and 313,042.72 is: 469,581.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,010.24 : 1,480,569.30 = 313,042.72 : x
  2. Step 2: Convert to fraction form
    987,010.24/1,480,569.30 = 313,042.72/x
  3. Step 3: Cross multiply
    987,010.24x = 1,480,569.30 × 313,042.72
  4. Step 4: Simplify right side
    987,010.24x = 463,481,440,820.50
  5. Step 5: Solve for x
    x = 463,481,440,820.50/987,010.24
  6. Step 6: Final answer
    x = 469,581.19

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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.