Home / 727,578.72-1,004,027.40-405,323.46

Finding the Fourth Proportional to 727,578.72, 1,004,027.40 and 405,323.46

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Solution

The fourth proportional to 727,578.72, 1,004,027.40 and 405,323.46 is: 559,328.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,578.72 : 1,004,027.40 = 405,323.46 : x
  2. Step 2: Convert to fraction form
    727,578.72/1,004,027.40 = 405,323.46/x
  3. Step 3: Cross multiply
    727,578.72x = 1,004,027.40 × 405,323.46
  4. Step 4: Simplify right side
    727,578.72x = 406,955,859,702.80
  5. Step 5: Solve for x
    x = 406,955,859,702.80/727,578.72
  6. Step 6: Final answer
    x = 559,328.98

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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.