Home / 687,340.15-1,031,764.43-546,093.36

Finding the Fourth Proportional to 687,340.15, 1,031,764.43 and 546,093.36

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Solution

The fourth proportional to 687,340.15, 1,031,764.43 and 546,093.36 is: 819,739.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,340.15 : 1,031,764.43 = 546,093.36 : x
  2. Step 2: Convert to fraction form
    687,340.15/1,031,764.43 = 546,093.36/x
  3. Step 3: Cross multiply
    687,340.15x = 1,031,764.43 × 546,093.36
  4. Step 4: Simplify right side
    687,340.15x = 563,439,705,672.42
  5. Step 5: Solve for x
    x = 563,439,705,672.42/687,340.15
  6. Step 6: Final answer
    x = 819,739.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.