Home / 716,384.52-988,579.46-394,074.18

Finding the Fourth Proportional to 716,384.52, 988,579.46 and 394,074.18

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Solution

The fourth proportional to 716,384.52, 988,579.46 and 394,074.18 is: 543,805.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,384.52 : 988,579.46 = 394,074.18 : x
  2. Step 2: Convert to fraction form
    716,384.52/988,579.46 = 394,074.18/x
  3. Step 3: Cross multiply
    716,384.52x = 988,579.46 × 394,074.18
  4. Step 4: Simplify right side
    716,384.52x = 389,573,640,064.34
  5. Step 5: Solve for x
    x = 389,573,640,064.34/716,384.52
  6. Step 6: Final answer
    x = 543,805.22

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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.