Home / 1,299,089.07-1,792,705.80-718,302.20

Finding the Fourth Proportional to 1,299,089.07, 1,792,705.80 and 718,302.20

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Solution

The fourth proportional to 1,299,089.07, 1,792,705.80 and 718,302.20 is: 991,236.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,089.07 : 1,792,705.80 = 718,302.20 : x
  2. Step 2: Convert to fraction form
    1,299,089.07/1,792,705.80 = 718,302.20/x
  3. Step 3: Cross multiply
    1,299,089.07x = 1,792,705.80 × 718,302.20
  4. Step 4: Simplify right side
    1,299,089.07x = 1,287,704,513,822.86
  5. Step 5: Solve for x
    x = 1,287,704,513,822.86/1,299,089.07
  6. Step 6: Final answer
    x = 991,236.51

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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.