Home / 722,834.20-997,581.18-400,648.60

Finding the Fourth Proportional to 722,834.20, 997,581.18 and 400,648.60

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Solution

The fourth proportional to 722,834.20, 997,581.18 and 400,648.60 is: 552,933.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,834.20 : 997,581.18 = 400,648.60 : x
  2. Step 2: Convert to fraction form
    722,834.20/997,581.18 = 400,648.60/x
  3. Step 3: Cross multiply
    722,834.20x = 997,581.18 × 400,648.60
  4. Step 4: Simplify right side
    722,834.20x = 399,679,503,153.35
  5. Step 5: Solve for x
    x = 399,679,503,153.35/722,834.20
  6. Step 6: Final answer
    x = 552,933.86

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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.