Home / 1,408,972.90-1,944,386.36-764,393.10

Finding the Fourth Proportional to 1,408,972.90, 1,944,386.36 and 764,393.10

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Solution

The fourth proportional to 1,408,972.90, 1,944,386.36 and 764,393.10 is: 1,054,864.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408,972.90 : 1,944,386.36 = 764,393.10 : x
  2. Step 2: Convert to fraction form
    1,408,972.90/1,944,386.36 = 764,393.10/x
  3. Step 3: Cross multiply
    1,408,972.90x = 1,944,386.36 × 764,393.10
  4. Step 4: Simplify right side
    1,408,972.90x = 1,486,275,517,318.12
  5. Step 5: Solve for x
    x = 1,486,275,517,318.12/1,408,972.90
  6. Step 6: Final answer
    x = 1,054,864.52

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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.