Home / 861,316.50-1,291,985.69-300,351

Finding the Fourth Proportional to 861,316.50, 1,291,985.69 and 300,351

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Solution

The fourth proportional to 861,316.50, 1,291,985.69 and 300,351 is: 450,530.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,316.50 : 1,291,985.69 = 300,351 : x
  2. Step 2: Convert to fraction form
    861,316.50/1,291,985.69 = 300,351/x
  3. Step 3: Cross multiply
    861,316.50x = 1,291,985.69 × 300,351
  4. Step 4: Simplify right side
    861,316.50x = 388,049,192,475.44
  5. Step 5: Solve for x
    x = 388,049,192,475.44/861,316.50
  6. Step 6: Final answer
    x = 450,530.31

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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.