Home / 719,111.50-1,078,386.89-269,587.34

Finding the Fourth Proportional to 719,111.50, 1,078,386.89 and 269,587.34

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Solution

The fourth proportional to 719,111.50, 1,078,386.89 and 269,587.34 is: 404,275.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,111.50 : 1,078,386.89 = 269,587.34 : x
  2. Step 2: Convert to fraction form
    719,111.50/1,078,386.89 = 269,587.34/x
  3. Step 3: Cross multiply
    719,111.50x = 1,078,386.89 × 269,587.34
  4. Step 4: Simplify right side
    719,111.50x = 290,719,453,165.97
  5. Step 5: Solve for x
    x = 290,719,453,165.97/719,111.50
  6. Step 6: Final answer
    x = 404,275.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.