Home / 727,378.84-1,003,813.94-405,088.94

Finding the Fourth Proportional to 727,378.84, 1,003,813.94 and 405,088.94

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Solution

The fourth proportional to 727,378.84, 1,003,813.94 and 405,088.94 is: 559,040.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,378.84 : 1,003,813.94 = 405,088.94 : x
  2. Step 2: Convert to fraction form
    727,378.84/1,003,813.94 = 405,088.94/x
  3. Step 3: Cross multiply
    727,378.84x = 1,003,813.94 × 405,088.94
  4. Step 4: Simplify right side
    727,378.84x = 406,633,923,415.01
  5. Step 5: Solve for x
    x = 406,633,923,415.01/727,378.84
  6. Step 6: Final answer
    x = 559,040.08

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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.