Home / 980,700.12-1,471,009.38-341,148.69

Finding the Fourth Proportional to 980,700.12, 1,471,009.38 and 341,148.69

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Solution

The fourth proportional to 980,700.12, 1,471,009.38 and 341,148.69 is: 511,708.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,700.12 : 1,471,009.38 = 341,148.69 : x
  2. Step 2: Convert to fraction form
    980,700.12/1,471,009.38 = 341,148.69/x
  3. Step 3: Cross multiply
    980,700.12x = 1,471,009.38 × 341,148.69
  4. Step 4: Simplify right side
    980,700.12x = 501,832,920,426.63
  5. Step 5: Solve for x
    x = 501,832,920,426.63/980,700.12
  6. Step 6: Final answer
    x = 511,708.84

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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.