Home / 1,685,988-2,326,938.12-1,253,279.16

Finding the Fourth Proportional to 1,685,988, 2,326,938.12 and 1,253,279.16

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Solution

The fourth proportional to 1,685,988, 2,326,938.12 and 1,253,279.16 is: 1,729,729.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,685,988 : 2,326,938.12 = 1,253,279.16 : x
  2. Step 2: Convert to fraction form
    1,685,988/2,326,938.12 = 1,253,279.16/x
  3. Step 3: Cross multiply
    1,685,988x = 2,326,938.12 × 1,253,279.16
  4. Step 4: Simplify right side
    1,685,988x = 2,916,303,052,405.58
  5. Step 5: Solve for x
    x = 2,916,303,052,405.58/1,685,988
  6. Step 6: Final answer
    x = 1,729,729.42

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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.