Home / 1,501,321.42-2,071,971.80-856,837.90

Finding the Fourth Proportional to 1,501,321.42, 2,071,971.80 and 856,837.90

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Solution

The fourth proportional to 1,501,321.42, 2,071,971.80 and 856,837.90 is: 1,182,520.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,501,321.42 : 2,071,971.80 = 856,837.90 : x
  2. Step 2: Convert to fraction form
    1,501,321.42/2,071,971.80 = 856,837.90/x
  3. Step 3: Cross multiply
    1,501,321.42x = 2,071,971.80 × 856,837.90
  4. Step 4: Simplify right side
    1,501,321.42x = 1,775,343,965,971.22
  5. Step 5: Solve for x
    x = 1,775,343,965,971.22/1,501,321.42
  6. Step 6: Final answer
    x = 1,182,520.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.