Home / 847,412.82-1,169,145.09-479,839.86

Finding the Fourth Proportional to 847,412.82, 1,169,145.09 and 479,839.86

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Solution

The fourth proportional to 847,412.82, 1,169,145.09 and 479,839.86 is: 662,017.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,412.82 : 1,169,145.09 = 479,839.86 : x
  2. Step 2: Convert to fraction form
    847,412.82/1,169,145.09 = 479,839.86/x
  3. Step 3: Cross multiply
    847,412.82x = 1,169,145.09 × 479,839.86
  4. Step 4: Simplify right side
    847,412.82x = 561,002,416,305.29
  5. Step 5: Solve for x
    x = 561,002,416,305.29/847,412.82
  6. Step 6: Final answer
    x = 662,017.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.