Home / 1,431,730.56-1,975,801.68-787,155.24

Finding the Fourth Proportional to 1,431,730.56, 1,975,801.68 and 787,155.24

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Solution

The fourth proportional to 1,431,730.56, 1,975,801.68 and 787,155.24 is: 1,086,281.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,730.56 : 1,975,801.68 = 787,155.24 : x
  2. Step 2: Convert to fraction form
    1,431,730.56/1,975,801.68 = 787,155.24/x
  3. Step 3: Cross multiply
    1,431,730.56x = 1,975,801.68 × 787,155.24
  4. Step 4: Simplify right side
    1,431,730.56x = 1,555,262,645,612.80
  5. Step 5: Solve for x
    x = 1,555,262,645,612.80/1,431,730.56
  6. Step 6: Final answer
    x = 1,086,281.66

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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.