Home / 723,197.56-997,920.42-400,904.80

Finding the Fourth Proportional to 723,197.56, 997,920.42 and 400,904.80

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Solution

The fourth proportional to 723,197.56, 997,920.42 and 400,904.80 is: 553,197.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,197.56 : 997,920.42 = 400,904.80 : x
  2. Step 2: Convert to fraction form
    723,197.56/997,920.42 = 400,904.80/x
  3. Step 3: Cross multiply
    723,197.56x = 997,920.42 × 400,904.80
  4. Step 4: Simplify right side
    723,197.56x = 400,071,086,396.02
  5. Step 5: Solve for x
    x = 400,071,086,396.02/723,197.56
  6. Step 6: Final answer
    x = 553,197.51

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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.