Home / 920,859.60-1,380,952.62-351,959.39

Finding the Fourth Proportional to 920,859.60, 1,380,952.62 and 351,959.39

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Solution

The fourth proportional to 920,859.60, 1,380,952.62 and 351,959.39 is: 527,810.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,859.60 : 1,380,952.62 = 351,959.39 : x
  2. Step 2: Convert to fraction form
    920,859.60/1,380,952.62 = 351,959.39/x
  3. Step 3: Cross multiply
    920,859.60x = 1,380,952.62 × 351,959.39
  4. Step 4: Simplify right side
    920,859.60x = 486,039,234,849.34
  5. Step 5: Solve for x
    x = 486,039,234,849.34/920,859.60
  6. Step 6: Final answer
    x = 527,810.36

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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.