Home / 827,059.28-1,240,620.50-258,492.74

Finding the Fourth Proportional to 827,059.28, 1,240,620.50 and 258,492.74

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Solution

The fourth proportional to 827,059.28, 1,240,620.50 and 258,492.74 is: 387,748.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,059.28 : 1,240,620.50 = 258,492.74 : x
  2. Step 2: Convert to fraction form
    827,059.28/1,240,620.50 = 258,492.74/x
  3. Step 3: Cross multiply
    827,059.28x = 1,240,620.50 × 258,492.74
  4. Step 4: Simplify right side
    827,059.28x = 320,691,386,788.30
  5. Step 5: Solve for x
    x = 320,691,386,788.30/827,059.28
  6. Step 6: Final answer
    x = 387,748.98

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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.