Home / 1,416,257.39-2,126,238.05-840,931.20

Finding the Fourth Proportional to 1,416,257.39, 2,126,238.05 and 840,931.20

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Solution

The fourth proportional to 1,416,257.39, 2,126,238.05 and 840,931.20 is: 1,262,496.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,416,257.39 : 2,126,238.05 = 840,931.20 : x
  2. Step 2: Convert to fraction form
    1,416,257.39/2,126,238.05 = 840,931.20/x
  3. Step 3: Cross multiply
    1,416,257.39x = 2,126,238.05 × 840,931.20
  4. Step 4: Simplify right side
    1,416,257.39x = 1,788,019,916,974.49
  5. Step 5: Solve for x
    x = 1,788,019,916,974.49/1,416,257.39
  6. Step 6: Final answer
    x = 1,262,496.44

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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.