Home / 978,339.30-1,350,121.69-732,889.26

Finding the Fourth Proportional to 978,339.30, 1,350,121.69 and 732,889.26

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Solution

The fourth proportional to 978,339.30, 1,350,121.69 and 732,889.26 is: 1,011,397.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,339.30 : 1,350,121.69 = 732,889.26 : x
  2. Step 2: Convert to fraction form
    978,339.30/1,350,121.69 = 732,889.26/x
  3. Step 3: Cross multiply
    978,339.30x = 1,350,121.69 × 732,889.26
  4. Step 4: Simplify right side
    978,339.30x = 989,489,686,294.05
  5. Step 5: Solve for x
    x = 989,489,686,294.05/978,339.30
  6. Step 6: Final answer
    x = 1,011,397.26

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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.