Home / 767,719.01-1,151,085.72-318,749.78

Finding the Fourth Proportional to 767,719.01, 1,151,085.72 and 318,749.78

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Solution

The fourth proportional to 767,719.01, 1,151,085.72 and 318,749.78 is: 477,920.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,719.01 : 1,151,085.72 = 318,749.78 : x
  2. Step 2: Convert to fraction form
    767,719.01/1,151,085.72 = 318,749.78/x
  3. Step 3: Cross multiply
    767,719.01x = 1,151,085.72 × 318,749.78
  4. Step 4: Simplify right side
    767,719.01x = 366,908,320,011.14
  5. Step 5: Solve for x
    x = 366,908,320,011.14/767,719.01
  6. Step 6: Final answer
    x = 477,920.07

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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.