Home / 912,713.85-1,368,779.61-313,530.52

Finding the Fourth Proportional to 912,713.85, 1,368,779.61 and 313,530.52

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Solution

The fourth proportional to 912,713.85, 1,368,779.61 and 313,530.52 is: 470,195.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,713.85 : 1,368,779.61 = 313,530.52 : x
  2. Step 2: Convert to fraction form
    912,713.85/1,368,779.61 = 313,530.52/x
  3. Step 3: Cross multiply
    912,713.85x = 1,368,779.61 × 313,530.52
  4. Step 4: Simplify right side
    912,713.85x = 429,154,181,321.05
  5. Step 5: Solve for x
    x = 429,154,181,321.05/912,713.85
  6. Step 6: Final answer
    x = 470,195.76

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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.