Home / 591,278.22-815,963.40-319,346.10

Finding the Fourth Proportional to 591,278.22, 815,963.40 and 319,346.10

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Solution

The fourth proportional to 591,278.22, 815,963.40 and 319,346.10 is: 440,697.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,278.22 : 815,963.40 = 319,346.10 : x
  2. Step 2: Convert to fraction form
    591,278.22/815,963.40 = 319,346.10/x
  3. Step 3: Cross multiply
    591,278.22x = 815,963.40 × 319,346.10
  4. Step 4: Simplify right side
    591,278.22x = 260,574,729,532.74
  5. Step 5: Solve for x
    x = 260,574,729,532.74/591,278.22
  6. Step 6: Final answer
    x = 440,697.32

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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.