Home / 1,431,746.56-1,975,823.82-787,171.24

Finding the Fourth Proportional to 1,431,746.56, 1,975,823.82 and 787,171.24

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Solution

The fourth proportional to 1,431,746.56, 1,975,823.82 and 787,171.24 is: 1,086,303.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,746.56 : 1,975,823.82 = 787,171.24 : x
  2. Step 2: Convert to fraction form
    1,431,746.56/1,975,823.82 = 787,171.24/x
  3. Step 3: Cross multiply
    1,431,746.56x = 1,975,823.82 × 787,171.24
  4. Step 4: Simplify right side
    1,431,746.56x = 1,555,311,686,410.94
  5. Step 5: Solve for x
    x = 1,555,311,686,410.94/1,431,746.56
  6. Step 6: Final answer
    x = 1,086,303.77

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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.