Home / 745,760.88-1,118,275.20-319,236.48

Finding the Fourth Proportional to 745,760.88, 1,118,275.20 and 319,236.48

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Solution

The fourth proportional to 745,760.88, 1,118,275.20 and 319,236.48 is: 478,698.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,760.88 : 1,118,275.20 = 319,236.48 : x
  2. Step 2: Convert to fraction form
    745,760.88/1,118,275.20 = 319,236.48/x
  3. Step 3: Cross multiply
    745,760.88x = 1,118,275.20 × 319,236.48
  4. Step 4: Simplify right side
    745,760.88x = 356,994,238,519.30
  5. Step 5: Solve for x
    x = 356,994,238,519.30/745,760.88
  6. Step 6: Final answer
    x = 478,698.00

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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.