Home / 687,932.60-1,031,024.10-612,699.80

Finding the Fourth Proportional to 687,932.60, 1,031,024.10 and 612,699.80

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Solution

The fourth proportional to 687,932.60, 1,031,024.10 and 612,699.80 is: 918,270.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,932.60 : 1,031,024.10 = 612,699.80 : x
  2. Step 2: Convert to fraction form
    687,932.60/1,031,024.10 = 612,699.80/x
  3. Step 3: Cross multiply
    687,932.60x = 1,031,024.10 × 612,699.80
  4. Step 4: Simplify right side
    687,932.60x = 631,708,259,865.18
  5. Step 5: Solve for x
    x = 631,708,259,865.18/687,932.60
  6. Step 6: Final answer
    x = 918,270.57

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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.