Home / 689,944.64-1,034,567.03-315,646.88

Finding the Fourth Proportional to 689,944.64, 1,034,567.03 and 315,646.88

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Solution

The fourth proportional to 689,944.64, 1,034,567.03 and 315,646.88 is: 473,310.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,944.64 : 1,034,567.03 = 315,646.88 : x
  2. Step 2: Convert to fraction form
    689,944.64/1,034,567.03 = 315,646.88/x
  3. Step 3: Cross multiply
    689,944.64x = 1,034,567.03 × 315,646.88
  4. Step 4: Simplify right side
    689,944.64x = 326,557,850,786.65
  5. Step 5: Solve for x
    x = 326,557,850,786.65/689,944.64
  6. Step 6: Final answer
    x = 473,310.23

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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.