Home / 810,023.60-1,215,035.40-558,081.20

Finding the Fourth Proportional to 810,023.60, 1,215,035.40 and 558,081.20

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Solution

The fourth proportional to 810,023.60, 1,215,035.40 and 558,081.20 is: 837,121.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,023.60 : 1,215,035.40 = 558,081.20 : x
  2. Step 2: Convert to fraction form
    810,023.60/1,215,035.40 = 558,081.20/x
  3. Step 3: Cross multiply
    810,023.60x = 1,215,035.40 × 558,081.20
  4. Step 4: Simplify right side
    810,023.60x = 678,088,414,074.48
  5. Step 5: Solve for x
    x = 678,088,414,074.48/810,023.60
  6. Step 6: Final answer
    x = 837,121.80

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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.