Home / 991,031.97-1,486,527.75-317,113.17

Finding the Fourth Proportional to 991,031.97, 1,486,527.75 and 317,113.17

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Solution

The fourth proportional to 991,031.97, 1,486,527.75 and 317,113.17 is: 475,663.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,031.97 : 1,486,527.75 = 317,113.17 : x
  2. Step 2: Convert to fraction form
    991,031.97/1,486,527.75 = 317,113.17/x
  3. Step 3: Cross multiply
    991,031.97x = 1,486,527.75 × 317,113.17
  4. Step 4: Simplify right side
    991,031.97x = 471,397,527,095.47
  5. Step 5: Solve for x
    x = 471,397,527,095.47/991,031.97
  6. Step 6: Final answer
    x = 475,663.29

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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.