Home / 814,803.15-1,221,718.73-499,486.35

Finding the Fourth Proportional to 814,803.15, 1,221,718.73 and 499,486.35

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Solution

The fourth proportional to 814,803.15, 1,221,718.73 and 499,486.35 is: 748,931.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,803.15 : 1,221,718.73 = 499,486.35 : x
  2. Step 2: Convert to fraction form
    814,803.15/1,221,718.73 = 499,486.35/x
  3. Step 3: Cross multiply
    814,803.15x = 1,221,718.73 × 499,486.35
  4. Step 4: Simplify right side
    814,803.15x = 610,231,826,676.90
  5. Step 5: Solve for x
    x = 610,231,826,676.90/814,803.15
  6. Step 6: Final answer
    x = 748,931.60

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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.