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Finding the Fourth Proportional to 400,501.44, 600,810.48 and 120,040.56

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Solution

The fourth proportional to 400,501.44, 600,810.48 and 120,040.56 is: 180,078.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,501.44 : 600,810.48 = 120,040.56 : x
  2. Step 2: Convert to fraction form
    400,501.44/600,810.48 = 120,040.56/x
  3. Step 3: Cross multiply
    400,501.44x = 600,810.48 × 120,040.56
  4. Step 4: Simplify right side
    400,501.44x = 72,121,626,473.07
  5. Step 5: Solve for x
    x = 72,121,626,473.07/400,501.44
  6. Step 6: Final answer
    x = 180,078.32

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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.