Home / 1,279,430.60-1,919,837.10-531,552.20

Finding the Fourth Proportional to 1,279,430.60, 1,919,837.10 and 531,552.20

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Solution

The fourth proportional to 1,279,430.60, 1,919,837.10 and 531,552.20 is: 797,615.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,430.60 : 1,919,837.10 = 531,552.20 : x
  2. Step 2: Convert to fraction form
    1,279,430.60/1,919,837.10 = 531,552.20/x
  3. Step 3: Cross multiply
    1,279,430.60x = 1,919,837.10 × 531,552.20
  4. Step 4: Simplify right side
    1,279,430.60x = 1,020,493,634,146.62
  5. Step 5: Solve for x
    x = 1,020,493,634,146.62/1,279,430.60
  6. Step 6: Final answer
    x = 797,615.47

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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.