Home / 1,299,056.66-1,792,666.36-718,264.49

Finding the Fourth Proportional to 1,299,056.66, 1,792,666.36 and 718,264.49

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Solution

The fourth proportional to 1,299,056.66, 1,792,666.36 and 718,264.49 is: 991,187.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,056.66 : 1,792,666.36 = 718,264.49 : x
  2. Step 2: Convert to fraction form
    1,299,056.66/1,792,666.36 = 718,264.49/x
  3. Step 3: Cross multiply
    1,299,056.66x = 1,792,666.36 × 718,264.49
  4. Step 4: Simplify right side
    1,299,056.66x = 1,287,608,583,761.81
  5. Step 5: Solve for x
    x = 1,287,608,583,761.81/1,299,056.66
  6. Step 6: Final answer
    x = 991,187.39

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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.