Home / 861,362.74-1,291,945.53-230,325.76

Finding the Fourth Proportional to 861,362.74, 1,291,945.53 and 230,325.76

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Solution

The fourth proportional to 861,362.74, 1,291,945.53 and 230,325.76 is: 345,462.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,362.74 : 1,291,945.53 = 230,325.76 : x
  2. Step 2: Convert to fraction form
    861,362.74/1,291,945.53 = 230,325.76/x
  3. Step 3: Cross multiply
    861,362.74x = 1,291,945.53 × 230,325.76
  4. Step 4: Simplify right side
    861,362.74x = 297,568,336,075.85
  5. Step 5: Solve for x
    x = 297,568,336,075.85/861,362.74
  6. Step 6: Final answer
    x = 345,462.28

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1.5x scale

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.