Home / 687,415.60-1,030,248.60-331,663.60

Finding the Fourth Proportional to 687,415.60, 1,030,248.60 and 331,663.60

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Solution

The fourth proportional to 687,415.60, 1,030,248.60 and 331,663.60 is: 497,073.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,415.60 : 1,030,248.60 = 331,663.60 : x
  2. Step 2: Convert to fraction form
    687,415.60/1,030,248.60 = 331,663.60/x
  3. Step 3: Cross multiply
    687,415.60x = 1,030,248.60 × 331,663.60
  4. Step 4: Simplify right side
    687,415.60x = 341,695,959,570.96
  5. Step 5: Solve for x
    x = 341,695,959,570.96/687,415.60
  6. Step 6: Final answer
    x = 497,073.33

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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.