Home / 1,389,691.08-2,084,222.76-705,885.36

Finding the Fourth Proportional to 1,389,691.08, 2,084,222.76 and 705,885.36

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Solution

The fourth proportional to 1,389,691.08, 2,084,222.76 and 705,885.36 is: 1,058,668.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,691.08 : 2,084,222.76 = 705,885.36 : x
  2. Step 2: Convert to fraction form
    1,389,691.08/2,084,222.76 = 705,885.36/x
  3. Step 3: Cross multiply
    1,389,691.08x = 2,084,222.76 × 705,885.36
  4. Step 4: Simplify right side
    1,389,691.08x = 1,471,222,333,262.79
  5. Step 5: Solve for x
    x = 1,471,222,333,262.79/1,389,691.08
  6. Step 6: Final answer
    x = 1,058,668.62

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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.