Home / 1,299,643.58-1,793,387.77-718,854.20

Finding the Fourth Proportional to 1,299,643.58, 1,793,387.77 and 718,854.20

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Solution

The fourth proportional to 1,299,643.58, 1,793,387.77 and 718,854.20 is: 991,952.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,643.58 : 1,793,387.77 = 718,854.20 : x
  2. Step 2: Convert to fraction form
    1,299,643.58/1,793,387.77 = 718,854.20/x
  3. Step 3: Cross multiply
    1,299,643.58x = 1,793,387.77 × 718,854.20
  4. Step 4: Simplify right side
    1,299,643.58x = 1,289,184,338,089.92
  5. Step 5: Solve for x
    x = 1,289,184,338,089.92/1,299,643.58
  6. Step 6: Final answer
    x = 991,952.23

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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.