Home / 1,215,331.02-1,677,136.32-671,489.46

Finding the Fourth Proportional to 1,215,331.02, 1,677,136.32 and 671,489.46

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Solution

The fourth proportional to 1,215,331.02, 1,677,136.32 and 671,489.46 is: 926,644.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,331.02 : 1,677,136.32 = 671,489.46 : x
  2. Step 2: Convert to fraction form
    1,215,331.02/1,677,136.32 = 671,489.46/x
  3. Step 3: Cross multiply
    1,215,331.02x = 1,677,136.32 × 671,489.46
  4. Step 4: Simplify right side
    1,215,331.02x = 1,126,179,361,863.19
  5. Step 5: Solve for x
    x = 1,126,179,361,863.19/1,215,331.02
  6. Step 6: Final answer
    x = 926,644.14

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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.