Home / 1,288,672.23-1,778,404.58-715,749.30

Finding the Fourth Proportional to 1,288,672.23, 1,778,404.58 and 715,749.30

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Solution

The fourth proportional to 1,288,672.23, 1,778,404.58 and 715,749.30 is: 987,754.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,672.23 : 1,778,404.58 = 715,749.30 : x
  2. Step 2: Convert to fraction form
    1,288,672.23/1,778,404.58 = 715,749.30/x
  3. Step 3: Cross multiply
    1,288,672.23x = 1,778,404.58 × 715,749.30
  4. Step 4: Simplify right side
    1,288,672.23x = 1,272,891,829,673.05
  5. Step 5: Solve for x
    x = 1,272,891,829,673.05/1,288,672.23
  6. Step 6: Final answer
    x = 987,754.53

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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.