Home / 1,328,919.60-1,993,379.40-972,001.20

Finding the Fourth Proportional to 1,328,919.60, 1,993,379.40 and 972,001.20

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Solution

The fourth proportional to 1,328,919.60, 1,993,379.40 and 972,001.20 is: 1,458,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,919.60 : 1,993,379.40 = 972,001.20 : x
  2. Step 2: Convert to fraction form
    1,328,919.60/1,993,379.40 = 972,001.20/x
  3. Step 3: Cross multiply
    1,328,919.60x = 1,993,379.40 × 972,001.20
  4. Step 4: Simplify right side
    1,328,919.60x = 1,937,567,168,855.28
  5. Step 5: Solve for x
    x = 1,937,567,168,855.28/1,328,919.60
  6. Step 6: Final answer
    x = 1,458,001.80

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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.