Home / 1,383,237.70-2,074,856.55-385,965.70

Finding the Fourth Proportional to 1,383,237.70, 2,074,856.55 and 385,965.70

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Solution

The fourth proportional to 1,383,237.70, 2,074,856.55 and 385,965.70 is: 578,948.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,237.70 : 2,074,856.55 = 385,965.70 : x
  2. Step 2: Convert to fraction form
    1,383,237.70/2,074,856.55 = 385,965.70/x
  3. Step 3: Cross multiply
    1,383,237.70x = 2,074,856.55 × 385,965.70
  4. Step 4: Simplify right side
    1,383,237.70x = 800,823,460,720.34
  5. Step 5: Solve for x
    x = 800,823,460,720.34/1,383,237.70
  6. Step 6: Final answer
    x = 578,948.55

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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.