Home / 1,319,813.16-1,821,343.62-716,201.16

Finding the Fourth Proportional to 1,319,813.16, 1,821,343.62 and 716,201.16

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Solution

The fourth proportional to 1,319,813.16, 1,821,343.62 and 716,201.16 is: 988,358.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,813.16 : 1,821,343.62 = 716,201.16 : x
  2. Step 2: Convert to fraction form
    1,319,813.16/1,821,343.62 = 716,201.16/x
  3. Step 3: Cross multiply
    1,319,813.16x = 1,821,343.62 × 716,201.16
  4. Step 4: Simplify right side
    1,319,813.16x = 1,304,448,413,402.60
  5. Step 5: Solve for x
    x = 1,304,448,413,402.60/1,319,813.16
  6. Step 6: Final answer
    x = 988,358.39

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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.