Home / 815,741.08-1,223,786.70-342,153.52

Finding the Fourth Proportional to 815,741.08, 1,223,786.70 and 342,153.52

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Solution

The fourth proportional to 815,741.08, 1,223,786.70 and 342,153.52 is: 513,303.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,741.08 : 1,223,786.70 = 342,153.52 : x
  2. Step 2: Convert to fraction form
    815,741.08/1,223,786.70 = 342,153.52/x
  3. Step 3: Cross multiply
    815,741.08x = 1,223,786.70 × 342,153.52
  4. Step 4: Simplify right side
    815,741.08x = 418,722,927,134.18
  5. Step 5: Solve for x
    x = 418,722,927,134.18/815,741.08
  6. Step 6: Final answer
    x = 513,303.72

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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.