Home / 810,152.60-1,215,113.70-277,698.20

Finding the Fourth Proportional to 810,152.60, 1,215,113.70 and 277,698.20

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Solution

The fourth proportional to 810,152.60, 1,215,113.70 and 277,698.20 is: 416,507.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,152.60 : 1,215,113.70 = 277,698.20 : x
  2. Step 2: Convert to fraction form
    810,152.60/1,215,113.70 = 277,698.20/x
  3. Step 3: Cross multiply
    810,152.60x = 1,215,113.70 × 277,698.20
  4. Step 4: Simplify right side
    810,152.60x = 337,434,887,285.34
  5. Step 5: Solve for x
    x = 337,434,887,285.34/810,152.60
  6. Step 6: Final answer
    x = 416,507.81

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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.