Home / 1,203,478.12-1,660,877.22-666,968.68

Finding the Fourth Proportional to 1,203,478.12, 1,660,877.22 and 666,968.68

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Solution

The fourth proportional to 1,203,478.12, 1,660,877.22 and 666,968.68 is: 920,459.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203,478.12 : 1,660,877.22 = 666,968.68 : x
  2. Step 2: Convert to fraction form
    1,203,478.12/1,660,877.22 = 666,968.68/x
  3. Step 3: Cross multiply
    1,203,478.12x = 1,660,877.22 × 666,968.68
  4. Step 4: Simplify right side
    1,203,478.12x = 1,107,753,087,065.47
  5. Step 5: Solve for x
    x = 1,107,753,087,065.47/1,203,478.12
  6. Step 6: Final answer
    x = 920,459.68

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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.