Home / 1,431,653-1,975,630.78-787,068.52

Finding the Fourth Proportional to 1,431,653, 1,975,630.78 and 787,068.52

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Solution

The fourth proportional to 1,431,653, 1,975,630.78 and 787,068.52 is: 1,086,126.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,653 : 1,975,630.78 = 787,068.52 : x
  2. Step 2: Convert to fraction form
    1,431,653/1,975,630.78 = 787,068.52/x
  3. Step 3: Cross multiply
    1,431,653x = 1,975,630.78 × 787,068.52
  4. Step 4: Simplify right side
    1,431,653x = 1,554,956,794,081.05
  5. Step 5: Solve for x
    x = 1,554,956,794,081.05/1,431,653
  6. Step 6: Final answer
    x = 1,086,126.87

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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.