Home / 768,279.70-1,152,419.55-207,313.30

Finding the Fourth Proportional to 768,279.70, 1,152,419.55 and 207,313.30

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Solution

The fourth proportional to 768,279.70, 1,152,419.55 and 207,313.30 is: 310,969.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,279.70 : 1,152,419.55 = 207,313.30 : x
  2. Step 2: Convert to fraction form
    768,279.70/1,152,419.55 = 207,313.30/x
  3. Step 3: Cross multiply
    768,279.70x = 1,152,419.55 × 207,313.30
  4. Step 4: Simplify right side
    768,279.70x = 238,911,899,895.02
  5. Step 5: Solve for x
    x = 238,911,899,895.02/768,279.70
  6. Step 6: Final answer
    x = 310,969.95

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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.