Home / 1,515,215.36-2,091,041.26-826,931.50

Finding the Fourth Proportional to 1,515,215.36, 2,091,041.26 and 826,931.50

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Solution

The fourth proportional to 1,515,215.36, 2,091,041.26 and 826,931.50 is: 1,141,189.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,215.36 : 2,091,041.26 = 826,931.50 : x
  2. Step 2: Convert to fraction form
    1,515,215.36/2,091,041.26 = 826,931.50/x
  3. Step 3: Cross multiply
    1,515,215.36x = 2,091,041.26 × 826,931.50
  4. Step 4: Simplify right side
    1,515,215.36x = 1,729,147,878,398.76
  5. Step 5: Solve for x
    x = 1,729,147,878,398.76/1,515,215.36
  6. Step 6: Final answer
    x = 1,141,189.51

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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.