Home / 815,740.08-1,223,785.20-342,152.52

Finding the Fourth Proportional to 815,740.08, 1,223,785.20 and 342,152.52

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Solution

The fourth proportional to 815,740.08, 1,223,785.20 and 342,152.52 is: 513,302.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,740.08 : 1,223,785.20 = 342,152.52 : x
  2. Step 2: Convert to fraction form
    815,740.08/1,223,785.20 = 342,152.52/x
  3. Step 3: Cross multiply
    815,740.08x = 1,223,785.20 × 342,152.52
  4. Step 4: Simplify right side
    815,740.08x = 418,721,190,118.70
  5. Step 5: Solve for x
    x = 418,721,190,118.70/815,740.08
  6. Step 6: Final answer
    x = 513,302.22

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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.