Home / 1,319,863.47-1,821,412.76-716,251.47

Finding the Fourth Proportional to 1,319,863.47, 1,821,412.76 and 716,251.47

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Solution

The fourth proportional to 1,319,863.47, 1,821,412.76 and 716,251.47 is: 988,427.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,863.47 : 1,821,412.76 = 716,251.47 : x
  2. Step 2: Convert to fraction form
    1,319,863.47/1,821,412.76 = 716,251.47/x
  3. Step 3: Cross multiply
    1,319,863.47x = 1,821,412.76 × 716,251.47
  4. Step 4: Simplify right side
    1,319,863.47x = 1,304,589,563,245.50
  5. Step 5: Solve for x
    x = 1,304,589,563,245.50/1,319,863.47
  6. Step 6: Final answer
    x = 988,427.66

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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.