Home / 1,298,885.29-1,792,408.74-718,071.45

Finding the Fourth Proportional to 1,298,885.29, 1,792,408.74 and 718,071.45

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Solution

The fourth proportional to 1,298,885.29, 1,792,408.74 and 718,071.45 is: 990,909.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,885.29 : 1,792,408.74 = 718,071.45 : x
  2. Step 2: Convert to fraction form
    1,298,885.29/1,792,408.74 = 718,071.45/x
  3. Step 3: Cross multiply
    1,298,885.29x = 1,792,408.74 × 718,071.45
  4. Step 4: Simplify right side
    1,298,885.29x = 1,287,077,542,924.47
  5. Step 5: Solve for x
    x = 1,287,077,542,924.47/1,298,885.29
  6. Step 6: Final answer
    x = 990,909.32

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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.