Home / 1,431,607.54-1,975,656.12-787,043.96

Finding the Fourth Proportional to 1,431,607.54, 1,975,656.12 and 787,043.96

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Solution

The fourth proportional to 1,431,607.54, 1,975,656.12 and 787,043.96 is: 1,086,141.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,607.54 : 1,975,656.12 = 787,043.96 : x
  2. Step 2: Convert to fraction form
    1,431,607.54/1,975,656.12 = 787,043.96/x
  3. Step 3: Cross multiply
    1,431,607.54x = 1,975,656.12 × 787,043.96
  4. Step 4: Simplify right side
    1,431,607.54x = 1,554,928,216,283.04
  5. Step 5: Solve for x
    x = 1,554,928,216,283.04/1,431,607.54
  6. Step 6: Final answer
    x = 1,086,141.40

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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.