Home / 591,240.47-815,911.63-319,308.41

Finding the Fourth Proportional to 591,240.47, 815,911.63 and 319,308.41

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Solution

The fourth proportional to 591,240.47, 815,911.63 and 319,308.41 is: 440,645.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,240.47 : 815,911.63 = 319,308.41 : x
  2. Step 2: Convert to fraction form
    591,240.47/815,911.63 = 319,308.41/x
  3. Step 3: Cross multiply
    591,240.47x = 815,911.63 × 319,308.41
  4. Step 4: Simplify right side
    591,240.47x = 260,527,446,517.32
  5. Step 5: Solve for x
    x = 260,527,446,517.32/591,240.47
  6. Step 6: Final answer
    x = 440,645.49

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1.5x scale

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.