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Finding the Fourth Proportional to 404,728.93, 606,987.60 and 120,342.89

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Solution

The fourth proportional to 404,728.93, 606,987.60 and 120,342.89 is: 180,482.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,728.93 : 606,987.60 = 120,342.89 : x
  2. Step 2: Convert to fraction form
    404,728.93/606,987.60 = 120,342.89/x
  3. Step 3: Cross multiply
    404,728.93x = 606,987.60 × 120,342.89
  4. Step 4: Simplify right side
    404,728.93x = 73,046,641,675.66
  5. Step 5: Solve for x
    x = 73,046,641,675.66/404,728.93
  6. Step 6: Final answer
    x = 180,482.88

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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.