Home / 738,111.80-1,107,167.70-239,475.80

Finding the Fourth Proportional to 738,111.80, 1,107,167.70 and 239,475.80

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Solution

The fourth proportional to 738,111.80, 1,107,167.70 and 239,475.80 is: 359,213.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,111.80 : 1,107,167.70 = 239,475.80 : x
  2. Step 2: Convert to fraction form
    738,111.80/1,107,167.70 = 239,475.80/x
  3. Step 3: Cross multiply
    738,111.80x = 1,107,167.70 × 239,475.80
  4. Step 4: Simplify right side
    738,111.80x = 265,139,870,691.66
  5. Step 5: Solve for x
    x = 265,139,870,691.66/738,111.80
  6. Step 6: Final answer
    x = 359,213.70

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Double scale
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Similar ratio
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1.5x scale

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.