Home / 738,256.80-1,107,061.20-338,764.80

Finding the Fourth Proportional to 738,256.80, 1,107,061.20 and 338,764.80

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Solution

The fourth proportional to 738,256.80, 1,107,061.20 and 338,764.80 is: 507,998.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,256.80 : 1,107,061.20 = 338,764.80 : x
  2. Step 2: Convert to fraction form
    738,256.80/1,107,061.20 = 338,764.80/x
  3. Step 3: Cross multiply
    738,256.80x = 1,107,061.20 × 338,764.80
  4. Step 4: Simplify right side
    738,256.80x = 375,033,366,005.76
  5. Step 5: Solve for x
    x = 375,033,366,005.76/738,256.80
  6. Step 6: Final answer
    x = 507,998.53

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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.