Home / 687,630.96-1,031,453.55-207,862.74

Finding the Fourth Proportional to 687,630.96, 1,031,453.55 and 207,862.74

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Solution

The fourth proportional to 687,630.96, 1,031,453.55 and 207,862.74 is: 311,796.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,630.96 : 1,031,453.55 = 207,862.74 : x
  2. Step 2: Convert to fraction form
    687,630.96/1,031,453.55 = 207,862.74/x
  3. Step 3: Cross multiply
    687,630.96x = 1,031,453.55 × 207,862.74
  4. Step 4: Simplify right side
    687,630.96x = 214,400,761,085.73
  5. Step 5: Solve for x
    x = 214,400,761,085.73/687,630.96
  6. Step 6: Final answer
    x = 311,796.26

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1.5x scale

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.