Home / 400,528.47-552,743.32-219,240.52

Finding the Fourth Proportional to 400,528.47, 552,743.32 and 219,240.52

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Solution

The fourth proportional to 400,528.47, 552,743.32 and 219,240.52 is: 302,559.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,528.47 : 552,743.32 = 219,240.52 : x
  2. Step 2: Convert to fraction form
    400,528.47/552,743.32 = 219,240.52/x
  3. Step 3: Cross multiply
    400,528.47x = 552,743.32 × 219,240.52
  4. Step 4: Simplify right side
    400,528.47x = 121,183,730,139.61
  5. Step 5: Solve for x
    x = 121,183,730,139.61/400,528.47
  6. Step 6: Final answer
    x = 302,559.59

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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.