Home / 486,061.10-670,494.75-284,818.22

Finding the Fourth Proportional to 486,061.10, 670,494.75 and 284,818.22

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Solution

The fourth proportional to 486,061.10, 670,494.75 and 284,818.22 is: 392,891.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,061.10 : 670,494.75 = 284,818.22 : x
  2. Step 2: Convert to fraction form
    486,061.10/670,494.75 = 284,818.22/x
  3. Step 3: Cross multiply
    486,061.10x = 670,494.75 × 284,818.22
  4. Step 4: Simplify right side
    486,061.10x = 190,969,121,214.35
  5. Step 5: Solve for x
    x = 190,969,121,214.35/486,061.10
  6. Step 6: Final answer
    x = 392,891.18

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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.