Home / 801,820.48-1,105,749.12-479,479.36

Finding the Fourth Proportional to 801,820.48, 1,105,749.12 and 479,479.36

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Solution

The fourth proportional to 801,820.48, 1,105,749.12 and 479,479.36 is: 661,225.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,820.48 : 1,105,749.12 = 479,479.36 : x
  2. Step 2: Convert to fraction form
    801,820.48/1,105,749.12 = 479,479.36/x
  3. Step 3: Cross multiply
    801,820.48x = 1,105,749.12 × 479,479.36
  4. Step 4: Simplify right side
    801,820.48x = 530,183,880,378.16
  5. Step 5: Solve for x
    x = 530,183,880,378.16/801,820.48
  6. Step 6: Final answer
    x = 661,225.17

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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.