Home / 860,001.43-1,290,002.37-252,789.77

Finding the Fourth Proportional to 860,001.43, 1,290,002.37 and 252,789.77

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Solution

The fourth proportional to 860,001.43, 1,290,002.37 and 252,789.77 is: 379,184.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,001.43 : 1,290,002.37 = 252,789.77 : x
  2. Step 2: Convert to fraction form
    860,001.43/1,290,002.37 = 252,789.77/x
  3. Step 3: Cross multiply
    860,001.43x = 1,290,002.37 × 252,789.77
  4. Step 4: Simplify right side
    860,001.43x = 326,099,398,854.48
  5. Step 5: Solve for x
    x = 326,099,398,854.48/860,001.43
  6. Step 6: Final answer
    x = 379,184.72

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1.5x scale

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.