Home / 1,319,768-1,821,284.70-716,156

Finding the Fourth Proportional to 1,319,768, 1,821,284.70 and 716,156

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Solution

The fourth proportional to 1,319,768, 1,821,284.70 and 716,156 is: 988,297.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,768 : 1,821,284.70 = 716,156 : x
  2. Step 2: Convert to fraction form
    1,319,768/1,821,284.70 = 716,156/x
  3. Step 3: Cross multiply
    1,319,768x = 1,821,284.70 × 716,156
  4. Step 4: Simplify right side
    1,319,768x = 1,304,323,965,613.20
  5. Step 5: Solve for x
    x = 1,304,323,965,613.20/1,319,768
  6. Step 6: Final answer
    x = 988,297.92

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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.