Home / 1,298,909.46-1,792,417.80-718,097.82

Finding the Fourth Proportional to 1,298,909.46, 1,792,417.80 and 718,097.82

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Solution

The fourth proportional to 1,298,909.46, 1,792,417.80 and 718,097.82 is: 990,932.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,909.46 : 1,792,417.80 = 718,097.82 : x
  2. Step 2: Convert to fraction form
    1,298,909.46/1,792,417.80 = 718,097.82/x
  3. Step 3: Cross multiply
    1,298,909.46x = 1,792,417.80 × 718,097.82
  4. Step 4: Simplify right side
    1,298,909.46x = 1,287,131,314,709.20
  5. Step 5: Solve for x
    x = 1,287,131,314,709.20/1,298,909.46
  6. Step 6: Final answer
    x = 990,932.28

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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.