Home / 738,341.70-1,107,512.55-607,121.70

Finding the Fourth Proportional to 738,341.70, 1,107,512.55 and 607,121.70

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Solution

The fourth proportional to 738,341.70, 1,107,512.55 and 607,121.70 is: 910,682.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,341.70 : 1,107,512.55 = 607,121.70 : x
  2. Step 2: Convert to fraction form
    738,341.70/1,107,512.55 = 607,121.70/x
  3. Step 3: Cross multiply
    738,341.70x = 1,107,512.55 × 607,121.70
  4. Step 4: Simplify right side
    738,341.70x = 672,394,902,127.34
  5. Step 5: Solve for x
    x = 672,394,902,127.34/738,341.70
  6. Step 6: Final answer
    x = 910,682.55

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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.