Home / 1,223,013.36-1,687,800.66-679,158.25

Finding the Fourth Proportional to 1,223,013.36, 1,687,800.66 and 679,158.25

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Solution

The fourth proportional to 1,223,013.36, 1,687,800.66 and 679,158.25 is: 937,261.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,013.36 : 1,687,800.66 = 679,158.25 : x
  2. Step 2: Convert to fraction form
    1,223,013.36/1,687,800.66 = 679,158.25/x
  3. Step 3: Cross multiply
    1,223,013.36x = 1,687,800.66 × 679,158.25
  4. Step 4: Simplify right side
    1,223,013.36x = 1,146,283,742,594.44
  5. Step 5: Solve for x
    x = 1,146,283,742,594.44/1,223,013.36
  6. Step 6: Final answer
    x = 937,261.83

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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.