Home / 801,345.76-1,105,853.11-438,763.03

Finding the Fourth Proportional to 801,345.76, 1,105,853.11 and 438,763.03

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Solution

The fourth proportional to 801,345.76, 1,105,853.11 and 438,763.03 is: 605,490.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,345.76 : 1,105,853.11 = 438,763.03 : x
  2. Step 2: Convert to fraction form
    801,345.76/1,105,853.11 = 438,763.03/x
  3. Step 3: Cross multiply
    801,345.76x = 1,105,853.11 × 438,763.03
  4. Step 4: Simplify right side
    801,345.76x = 485,207,457,416.98
  5. Step 5: Solve for x
    x = 485,207,457,416.98/801,345.76
  6. Step 6: Final answer
    x = 605,490.77

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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.