Home / 991,011.17-1,486,738.26-317,132.96

Finding the Fourth Proportional to 991,011.17, 1,486,738.26 and 317,132.96

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Solution

The fourth proportional to 991,011.17, 1,486,738.26 and 317,132.96 is: 475,770.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,011.17 : 1,486,738.26 = 317,132.96 : x
  2. Step 2: Convert to fraction form
    991,011.17/1,486,738.26 = 317,132.96/x
  3. Step 3: Cross multiply
    991,011.17x = 1,486,738.26 × 317,132.96
  4. Step 4: Simplify right side
    991,011.17x = 471,493,697,705.36
  5. Step 5: Solve for x
    x = 471,493,697,705.36/991,011.17
  6. Step 6: Final answer
    x = 475,770.31

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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.