Home / 716,672.58-988,983.36-394,352.52

Finding the Fourth Proportional to 716,672.58, 988,983.36 and 394,352.52

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Solution

The fourth proportional to 716,672.58, 988,983.36 and 394,352.52 is: 544,192.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,672.58 : 988,983.36 = 394,352.52 : x
  2. Step 2: Convert to fraction form
    716,672.58/988,983.36 = 394,352.52/x
  3. Step 3: Cross multiply
    716,672.58x = 988,983.36 × 394,352.52
  4. Step 4: Simplify right side
    716,672.58x = 390,008,080,254.07
  5. Step 5: Solve for x
    x = 390,008,080,254.07/716,672.58
  6. Step 6: Final answer
    x = 544,192.83

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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.