Home / 391,923.08-587,821.69-107,547.22

Finding the Fourth Proportional to 391,923.08, 587,821.69 and 107,547.22

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Solution

The fourth proportional to 391,923.08, 587,821.69 and 107,547.22 is: 161,303.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,923.08 : 587,821.69 = 107,547.22 : x
  2. Step 2: Convert to fraction form
    391,923.08/587,821.69 = 107,547.22/x
  3. Step 3: Cross multiply
    391,923.08x = 587,821.69 × 107,547.22
  4. Step 4: Simplify right side
    391,923.08x = 63,218,589,108.49
  5. Step 5: Solve for x
    x = 63,218,589,108.49/391,923.08
  6. Step 6: Final answer
    x = 161,303.56

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1.5x scale

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.