Home / 986,389.90-1,362,158.38-932,654.68

Finding the Fourth Proportional to 986,389.90, 1,362,158.38 and 932,654.68

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Solution

The fourth proportional to 986,389.90, 1,362,158.38 and 932,654.68 is: 1,287,952.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,389.90 : 1,362,158.38 = 932,654.68 : x
  2. Step 2: Convert to fraction form
    986,389.90/1,362,158.38 = 932,654.68/x
  3. Step 3: Cross multiply
    986,389.90x = 1,362,158.38 × 932,654.68
  4. Step 4: Simplify right side
    986,389.90x = 1,270,423,388,008.22
  5. Step 5: Solve for x
    x = 1,270,423,388,008.22/986,389.90
  6. Step 6: Final answer
    x = 1,287,952.55

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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.