Home / 903,140.70-1,354,711.05-455,243.10

Finding the Fourth Proportional to 903,140.70, 1,354,711.05 and 455,243.10

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Solution

The fourth proportional to 903,140.70, 1,354,711.05 and 455,243.10 is: 682,864.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,140.70 : 1,354,711.05 = 455,243.10 : x
  2. Step 2: Convert to fraction form
    903,140.70/1,354,711.05 = 455,243.10/x
  3. Step 3: Cross multiply
    903,140.70x = 1,354,711.05 × 455,243.10
  4. Step 4: Simplify right side
    903,140.70x = 616,722,858,006.26
  5. Step 5: Solve for x
    x = 616,722,858,006.26/903,140.70
  6. Step 6: Final answer
    x = 682,864.65

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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.