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Finding the Fourth Proportional to 587,251.15, 810,393.05 and 342,220.28

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Solution

The fourth proportional to 587,251.15, 810,393.05 and 342,220.28 is: 472,256.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,251.15 : 810,393.05 = 342,220.28 : x
  2. Step 2: Convert to fraction form
    587,251.15/810,393.05 = 342,220.28/x
  3. Step 3: Cross multiply
    587,251.15x = 810,393.05 × 342,220.28
  4. Step 4: Simplify right side
    587,251.15x = 277,332,933,284.64
  5. Step 5: Solve for x
    x = 277,332,933,284.64/587,251.15
  6. Step 6: Final answer
    x = 472,256.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.