Home / 1,208,133.36-1,667,731.68-815,740.20

Finding the Fourth Proportional to 1,208,133.36, 1,667,731.68 and 815,740.20

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Solution

The fourth proportional to 1,208,133.36, 1,667,731.68 and 815,740.20 is: 1,126,064.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,133.36 : 1,667,731.68 = 815,740.20 : x
  2. Step 2: Convert to fraction form
    1,208,133.36/1,667,731.68 = 815,740.20/x
  3. Step 3: Cross multiply
    1,208,133.36x = 1,667,731.68 × 815,740.20
  4. Step 4: Simplify right side
    1,208,133.36x = 1,360,435,774,189.54
  5. Step 5: Solve for x
    x = 1,360,435,774,189.54/1,208,133.36
  6. Step 6: Final answer
    x = 1,126,064.24

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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.