Home / 826,312.76-1,236,811.88-426,408.84

Finding the Fourth Proportional to 826,312.76, 1,236,811.88 and 426,408.84

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Solution

The fourth proportional to 826,312.76, 1,236,811.88 and 426,408.84 is: 638,242.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,312.76 : 1,236,811.88 = 426,408.84 : x
  2. Step 2: Convert to fraction form
    826,312.76/1,236,811.88 = 426,408.84/x
  3. Step 3: Cross multiply
    826,312.76x = 1,236,811.88 × 426,408.84
  4. Step 4: Simplify right side
    826,312.76x = 527,387,519,049.02
  5. Step 5: Solve for x
    x = 527,387,519,049.02/826,312.76
  6. Step 6: Final answer
    x = 638,242.01

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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.