Home / 1,666,837.32-2,300,188.44-978,498.18

Finding the Fourth Proportional to 1,666,837.32, 2,300,188.44 and 978,498.18

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Solution

The fourth proportional to 1,666,837.32, 2,300,188.44 and 978,498.18 is: 1,350,299.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,666,837.32 : 2,300,188.44 = 978,498.18 : x
  2. Step 2: Convert to fraction form
    1,666,837.32/2,300,188.44 = 978,498.18/x
  3. Step 3: Cross multiply
    1,666,837.32x = 2,300,188.44 × 978,498.18
  4. Step 4: Simplify right side
    1,666,837.32x = 2,250,730,202,197.04
  5. Step 5: Solve for x
    x = 2,250,730,202,197.04/1,666,837.32
  6. Step 6: Final answer
    x = 1,350,299.86

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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.