Home / 991,004.42-1,486,728.14-317,126.21

Finding the Fourth Proportional to 991,004.42, 1,486,728.14 and 317,126.21

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Solution

The fourth proportional to 991,004.42, 1,486,728.14 and 317,126.21 is: 475,760.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,004.42 : 1,486,728.14 = 317,126.21 : x
  2. Step 2: Convert to fraction form
    991,004.42/1,486,728.14 = 317,126.21/x
  3. Step 3: Cross multiply
    991,004.42x = 1,486,728.14 × 317,126.21
  4. Step 4: Simplify right side
    991,004.42x = 471,480,451,319.28
  5. Step 5: Solve for x
    x = 471,480,451,319.28/991,004.42
  6. Step 6: Final answer
    x = 475,760.19

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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.