Home / 1,119,745.40-1,679,618.10-409,796.60

Finding the Fourth Proportional to 1,119,745.40, 1,679,618.10 and 409,796.60

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Solution

The fourth proportional to 1,119,745.40, 1,679,618.10 and 409,796.60 is: 614,694.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,745.40 : 1,679,618.10 = 409,796.60 : x
  2. Step 2: Convert to fraction form
    1,119,745.40/1,679,618.10 = 409,796.60/x
  3. Step 3: Cross multiply
    1,119,745.40x = 1,679,618.10 × 409,796.60
  4. Step 4: Simplify right side
    1,119,745.40x = 688,301,786,678.46
  5. Step 5: Solve for x
    x = 688,301,786,678.46/1,119,745.40
  6. Step 6: Final answer
    x = 614,694.90

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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.