Home / 1,392,040.90-2,090,005.35-889,711.30

Finding the Fourth Proportional to 1,392,040.90, 2,090,005.35 and 889,711.30

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Solution

The fourth proportional to 1,392,040.90, 2,090,005.35 and 889,711.30 is: 1,335,809.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,040.90 : 2,090,005.35 = 889,711.30 : x
  2. Step 2: Convert to fraction form
    1,392,040.90/2,090,005.35 = 889,711.30/x
  3. Step 3: Cross multiply
    1,392,040.90x = 2,090,005.35 × 889,711.30
  4. Step 4: Simplify right side
    1,392,040.90x = 1,859,501,376,955.46
  5. Step 5: Solve for x
    x = 1,859,501,376,955.46/1,392,040.90
  6. Step 6: Final answer
    x = 1,335,809.44

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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.