Home / 768,080.64-1,152,119.67-318,501.48

Finding the Fourth Proportional to 768,080.64, 1,152,119.67 and 318,501.48

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Solution

The fourth proportional to 768,080.64, 1,152,119.67 and 318,501.48 is: 477,751.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,080.64 : 1,152,119.67 = 318,501.48 : x
  2. Step 2: Convert to fraction form
    768,080.64/1,152,119.67 = 318,501.48/x
  3. Step 3: Cross multiply
    768,080.64x = 1,152,119.67 × 318,501.48
  4. Step 4: Simplify right side
    768,080.64x = 366,951,820,032.11
  5. Step 5: Solve for x
    x = 366,951,820,032.11/768,080.64
  6. Step 6: Final answer
    x = 477,751.69

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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.