Home / 723,941.78-999,159.57-401,755.37

Finding the Fourth Proportional to 723,941.78, 999,159.57 and 401,755.37

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Solution

The fourth proportional to 723,941.78, 999,159.57 and 401,755.37 is: 554,488.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,941.78 : 999,159.57 = 401,755.37 : x
  2. Step 2: Convert to fraction form
    723,941.78/999,159.57 = 401,755.37/x
  3. Step 3: Cross multiply
    723,941.78x = 999,159.57 × 401,755.37
  4. Step 4: Simplify right side
    723,941.78x = 401,417,717,738.59
  5. Step 5: Solve for x
    x = 401,417,717,738.59/723,941.78
  6. Step 6: Final answer
    x = 554,488.95

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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.