Home / 729,216.07-1,006,318.37-402,529.28

Finding the Fourth Proportional to 729,216.07, 1,006,318.37 and 402,529.28

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Solution

The fourth proportional to 729,216.07, 1,006,318.37 and 402,529.28 is: 555,490.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,216.07 : 1,006,318.37 = 402,529.28 : x
  2. Step 2: Convert to fraction form
    729,216.07/1,006,318.37 = 402,529.28/x
  3. Step 3: Cross multiply
    729,216.07x = 1,006,318.37 × 402,529.28
  4. Step 4: Simplify right side
    729,216.07x = 405,072,603,895.28
  5. Step 5: Solve for x
    x = 405,072,603,895.28/729,216.07
  6. Step 6: Final answer
    x = 555,490.51

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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.