Home / 769,064.84-1,061,808.66-688,352.20

Finding the Fourth Proportional to 769,064.84, 1,061,808.66 and 688,352.20

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Solution

The fourth proportional to 769,064.84, 1,061,808.66 and 688,352.20 is: 950,372.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,064.84 : 1,061,808.66 = 688,352.20 : x
  2. Step 2: Convert to fraction form
    769,064.84/1,061,808.66 = 688,352.20/x
  3. Step 3: Cross multiply
    769,064.84x = 1,061,808.66 × 688,352.20
  4. Step 4: Simplify right side
    769,064.84x = 730,898,327,090.05
  5. Step 5: Solve for x
    x = 730,898,327,090.05/769,064.84
  6. Step 6: Final answer
    x = 950,372.83

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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.