Home / 1,001,320.78-1,502,131.92-291,255.34

Finding the Fourth Proportional to 1,001,320.78, 1,502,131.92 and 291,255.34

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Solution

The fourth proportional to 1,001,320.78, 1,502,131.92 and 291,255.34 is: 436,926.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,001,320.78 : 1,502,131.92 = 291,255.34 : x
  2. Step 2: Convert to fraction form
    1,001,320.78/1,502,131.92 = 291,255.34/x
  3. Step 3: Cross multiply
    1,001,320.78x = 1,502,131.92 × 291,255.34
  4. Step 4: Simplify right side
    1,001,320.78x = 437,503,943,084.45
  5. Step 5: Solve for x
    x = 437,503,943,084.45/1,001,320.78
  6. Step 6: Final answer
    x = 436,926.86

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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.