Home / 400,711.42-552,988.56-219,420.46

Finding the Fourth Proportional to 400,711.42, 552,988.56 and 219,420.46

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Solution

The fourth proportional to 400,711.42, 552,988.56 and 219,420.46 is: 302,803.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,711.42 : 552,988.56 = 219,420.46 : x
  2. Step 2: Convert to fraction form
    400,711.42/552,988.56 = 219,420.46/x
  3. Step 3: Cross multiply
    400,711.42x = 552,988.56 × 219,420.46
  4. Step 4: Simplify right side
    400,711.42x = 121,337,004,209.94
  5. Step 5: Solve for x
    x = 121,337,004,209.94/400,711.42
  6. Step 6: Final answer
    x = 302,803.96

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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.