Home / 1,299,320.55-1,793,073.69-718,513.47

Finding the Fourth Proportional to 1,299,320.55, 1,793,073.69 and 718,513.47

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Solution

The fourth proportional to 1,299,320.55, 1,793,073.69 and 718,513.47 is: 991,554.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,320.55 : 1,793,073.69 = 718,513.47 : x
  2. Step 2: Convert to fraction form
    1,299,320.55/1,793,073.69 = 718,513.47/x
  3. Step 3: Cross multiply
    1,299,320.55x = 1,793,073.69 × 718,513.47
  4. Step 4: Simplify right side
    1,299,320.55x = 1,288,347,598,967.60
  5. Step 5: Solve for x
    x = 1,288,347,598,967.60/1,299,320.55
  6. Step 6: Final answer
    x = 991,554.85

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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.