Home / 1,385,887.73-2,078,904.89-439,332.26

Finding the Fourth Proportional to 1,385,887.73, 2,078,904.89 and 439,332.26

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Solution

The fourth proportional to 1,385,887.73, 2,078,904.89 and 439,332.26 is: 659,021.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,887.73 : 2,078,904.89 = 439,332.26 : x
  2. Step 2: Convert to fraction form
    1,385,887.73/2,078,904.89 = 439,332.26/x
  3. Step 3: Cross multiply
    1,385,887.73x = 2,078,904.89 × 439,332.26
  4. Step 4: Simplify right side
    1,385,887.73x = 913,329,974,352.56
  5. Step 5: Solve for x
    x = 913,329,974,352.56/1,385,887.73
  6. Step 6: Final answer
    x = 659,021.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.