Home / 749,998.30-1,034,990.41-405,826.72

Finding the Fourth Proportional to 749,998.30, 1,034,990.41 and 405,826.72

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Solution

The fourth proportional to 749,998.30, 1,034,990.41 and 405,826.72 is: 560,036.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,998.30 : 1,034,990.41 = 405,826.72 : x
  2. Step 2: Convert to fraction form
    749,998.30/1,034,990.41 = 405,826.72/x
  3. Step 3: Cross multiply
    749,998.30x = 1,034,990.41 × 405,826.72
  4. Step 4: Simplify right side
    749,998.30x = 420,026,763,321.76
  5. Step 5: Solve for x
    x = 420,026,763,321.76/749,998.30
  6. Step 6: Final answer
    x = 560,036.95

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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.