Home / 1,123,553.70-1,685,330.55-745,640.10

Finding the Fourth Proportional to 1,123,553.70, 1,685,330.55 and 745,640.10

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Solution

The fourth proportional to 1,123,553.70, 1,685,330.55 and 745,640.10 is: 1,118,460.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,553.70 : 1,685,330.55 = 745,640.10 : x
  2. Step 2: Convert to fraction form
    1,123,553.70/1,685,330.55 = 745,640.10/x
  3. Step 3: Cross multiply
    1,123,553.70x = 1,685,330.55 × 745,640.10
  4. Step 4: Simplify right side
    1,123,553.70x = 1,256,650,039,835.06
  5. Step 5: Solve for x
    x = 1,256,650,039,835.06/1,123,553.70
  6. Step 6: Final answer
    x = 1,118,460.15

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Double scale
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Similar ratio
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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.