Home / 1,117,871.08-1,542,399.78-634,326.76

Finding the Fourth Proportional to 1,117,871.08, 1,542,399.78 and 634,326.76

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Solution

The fourth proportional to 1,117,871.08, 1,542,399.78 and 634,326.76 is: 875,222.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,871.08 : 1,542,399.78 = 634,326.76 : x
  2. Step 2: Convert to fraction form
    1,117,871.08/1,542,399.78 = 634,326.76/x
  3. Step 3: Cross multiply
    1,117,871.08x = 1,542,399.78 × 634,326.76
  4. Step 4: Simplify right side
    1,117,871.08x = 978,385,455,072.11
  5. Step 5: Solve for x
    x = 978,385,455,072.11/1,117,871.08
  6. Step 6: Final answer
    x = 875,222.08

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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.