Home / 1,378,720.87-1,902,607.46-766,860.46

Finding the Fourth Proportional to 1,378,720.87, 1,902,607.46 and 766,860.46

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Solution

The fourth proportional to 1,378,720.87, 1,902,607.46 and 766,860.46 is: 1,058,252.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,720.87 : 1,902,607.46 = 766,860.46 : x
  2. Step 2: Convert to fraction form
    1,378,720.87/1,902,607.46 = 766,860.46/x
  3. Step 3: Cross multiply
    1,378,720.87x = 1,902,607.46 × 766,860.46
  4. Step 4: Simplify right side
    1,378,720.87x = 1,459,034,434,805.31
  5. Step 5: Solve for x
    x = 1,459,034,434,805.31/1,378,720.87
  6. Step 6: Final answer
    x = 1,058,252.23

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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.