Home / 400,401.67-553,154.45-262,906.79

Finding the Fourth Proportional to 400,401.67, 553,154.45 and 262,906.79

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Solution

The fourth proportional to 400,401.67, 553,154.45 and 262,906.79 is: 363,205.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,401.67 : 553,154.45 = 262,906.79 : x
  2. Step 2: Convert to fraction form
    400,401.67/553,154.45 = 262,906.79/x
  3. Step 3: Cross multiply
    400,401.67x = 553,154.45 × 262,906.79
  4. Step 4: Simplify right side
    400,401.67x = 145,428,060,823.72
  5. Step 5: Solve for x
    x = 145,428,060,823.72/400,401.67
  6. Step 6: Final answer
    x = 363,205.43

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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.