Home / 400,686.09-552,946.95-219,409.52

Finding the Fourth Proportional to 400,686.09, 552,946.95 and 219,409.52

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Solution

The fourth proportional to 400,686.09, 552,946.95 and 219,409.52 is: 302,785.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,686.09 : 552,946.95 = 219,409.52 : x
  2. Step 2: Convert to fraction form
    400,686.09/552,946.95 = 219,409.52/x
  3. Step 3: Cross multiply
    400,686.09x = 552,946.95 × 219,409.52
  4. Step 4: Simplify right side
    400,686.09x = 121,321,822,120.23
  5. Step 5: Solve for x
    x = 121,321,822,120.23/400,686.09
  6. Step 6: Final answer
    x = 302,785.21

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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.