Home / 1,213,883.70-1,820,825.55-315,251.70

Finding the Fourth Proportional to 1,213,883.70, 1,820,825.55 and 315,251.70

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Solution

The fourth proportional to 1,213,883.70, 1,820,825.55 and 315,251.70 is: 472,877.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,883.70 : 1,820,825.55 = 315,251.70 : x
  2. Step 2: Convert to fraction form
    1,213,883.70/1,820,825.55 = 315,251.70/x
  3. Step 3: Cross multiply
    1,213,883.70x = 1,820,825.55 × 315,251.70
  4. Step 4: Simplify right side
    1,213,883.70x = 574,018,350,040.94
  5. Step 5: Solve for x
    x = 574,018,350,040.94/1,213,883.70
  6. Step 6: Final answer
    x = 472,877.55

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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.