Home / 591,282.58-815,969.80-319,350.40

Finding the Fourth Proportional to 591,282.58, 815,969.80 and 319,350.40

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Solution

The fourth proportional to 591,282.58, 815,969.80 and 319,350.40 is: 440,703.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,282.58 : 815,969.80 = 319,350.40 : x
  2. Step 2: Convert to fraction form
    591,282.58/815,969.80 = 319,350.40/x
  3. Step 3: Cross multiply
    591,282.58x = 815,969.80 × 319,350.40
  4. Step 4: Simplify right side
    591,282.58x = 260,580,282,017.92
  5. Step 5: Solve for x
    x = 260,580,282,017.92/591,282.58
  6. Step 6: Final answer
    x = 440,703.47

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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.