Home / 400,688.09-552,949.71-219,411.52

Finding the Fourth Proportional to 400,688.09, 552,949.71 and 219,411.52

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Solution

The fourth proportional to 400,688.09, 552,949.71 and 219,411.52 is: 302,787.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,688.09 : 552,949.71 = 219,411.52 : x
  2. Step 2: Convert to fraction form
    400,688.09/552,949.71 = 219,411.52/x
  3. Step 3: Cross multiply
    400,688.09x = 552,949.71 × 219,411.52
  4. Step 4: Simplify right side
    400,688.09x = 121,323,536,354.66
  5. Step 5: Solve for x
    x = 121,323,536,354.66/400,688.09
  6. Step 6: Final answer
    x = 302,787.98

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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.