Home / 1,293,147.52-1,784,598.95-720,187.69

Finding the Fourth Proportional to 1,293,147.52, 1,784,598.95 and 720,187.69

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Solution

The fourth proportional to 1,293,147.52, 1,784,598.95 and 720,187.69 is: 993,889.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,147.52 : 1,784,598.95 = 720,187.69 : x
  2. Step 2: Convert to fraction form
    1,293,147.52/1,784,598.95 = 720,187.69/x
  3. Step 3: Cross multiply
    1,293,147.52x = 1,784,598.95 × 720,187.69
  4. Step 4: Simplify right side
    1,293,147.52x = 1,285,246,191,775.99
  5. Step 5: Solve for x
    x = 1,285,246,191,775.99/1,293,147.52
  6. Step 6: Final answer
    x = 993,889.85

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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.