Home / 991,003.15-1,486,726.26-317,124.91

Finding the Fourth Proportional to 991,003.15, 1,486,726.26 and 317,124.91

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Solution

The fourth proportional to 991,003.15, 1,486,726.26 and 317,124.91 is: 475,758.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,003.15 : 1,486,726.26 = 317,124.91 : x
  2. Step 2: Convert to fraction form
    991,003.15/1,486,726.26 = 317,124.91/x
  3. Step 3: Cross multiply
    991,003.15x = 1,486,726.26 × 317,124.91
  4. Step 4: Simplify right side
    991,003.15x = 471,477,931,397.14
  5. Step 5: Solve for x
    x = 471,477,931,397.14/991,003.15
  6. Step 6: Final answer
    x = 475,758.26

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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.