Home / 1,378,722.62-1,902,609.87-766,862.22

Finding the Fourth Proportional to 1,378,722.62, 1,902,609.87 and 766,862.22

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Solution

The fourth proportional to 1,378,722.62, 1,902,609.87 and 766,862.22 is: 1,058,254.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,722.62 : 1,902,609.87 = 766,862.22 : x
  2. Step 2: Convert to fraction form
    1,378,722.62/1,902,609.87 = 766,862.22/x
  3. Step 3: Cross multiply
    1,378,722.62x = 1,902,609.87 × 766,862.22
  4. Step 4: Simplify right side
    1,378,722.62x = 1,459,039,628,702.11
  5. Step 5: Solve for x
    x = 1,459,039,628,702.11/1,378,722.62
  6. Step 6: Final answer
    x = 1,058,254.65

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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.