Home / 727,681.26-1,004,200.77-405,392.16

Finding the Fourth Proportional to 727,681.26, 1,004,200.77 and 405,392.16

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Solution

The fourth proportional to 727,681.26, 1,004,200.77 and 405,392.16 is: 559,441.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,681.26 : 1,004,200.77 = 405,392.16 : x
  2. Step 2: Convert to fraction form
    727,681.26/1,004,200.77 = 405,392.16/x
  3. Step 3: Cross multiply
    727,681.26x = 1,004,200.77 × 405,392.16
  4. Step 4: Simplify right side
    727,681.26x = 407,095,119,223.96
  5. Step 5: Solve for x
    x = 407,095,119,223.96/727,681.26
  6. Step 6: Final answer
    x = 559,441.53

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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.