Home / 404,631.20-607,027.80-120,321.20

Finding the Fourth Proportional to 404,631.20, 607,027.80 and 120,321.20

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Solution

The fourth proportional to 404,631.20, 607,027.80 and 120,321.20 is: 180,505.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,631.20 : 607,027.80 = 120,321.20 : x
  2. Step 2: Convert to fraction form
    404,631.20/607,027.80 = 120,321.20/x
  3. Step 3: Cross multiply
    404,631.20x = 607,027.80 × 120,321.20
  4. Step 4: Simplify right side
    404,631.20x = 73,038,313,329.36
  5. Step 5: Solve for x
    x = 73,038,313,329.36/404,631.20
  6. Step 6: Final answer
    x = 180,505.89

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1.5x scale

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.