Home / 912,713.34-1,368,778.85-313,530.02

Finding the Fourth Proportional to 912,713.34, 1,368,778.85 and 313,530.02

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Solution

The fourth proportional to 912,713.34, 1,368,778.85 and 313,530.02 is: 470,195.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,713.34 : 1,368,778.85 = 313,530.02 : x
  2. Step 2: Convert to fraction form
    912,713.34/1,368,778.85 = 313,530.02/x
  3. Step 3: Cross multiply
    912,713.34x = 1,368,778.85 × 313,530.02
  4. Step 4: Simplify right side
    912,713.34x = 429,153,259,876.80
  5. Step 5: Solve for x
    x = 429,153,259,876.80/912,713.34
  6. Step 6: Final answer
    x = 470,195.01

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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.