Home / 727,655.76-1,004,165.51-405,366.66

Finding the Fourth Proportional to 727,655.76, 1,004,165.51 and 405,366.66

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Solution

The fourth proportional to 727,655.76, 1,004,165.51 and 405,366.66 is: 559,406.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,655.76 : 1,004,165.51 = 405,366.66 : x
  2. Step 2: Convert to fraction form
    727,655.76/1,004,165.51 = 405,366.66/x
  3. Step 3: Cross multiply
    727,655.76x = 1,004,165.51 × 405,366.66
  4. Step 4: Simplify right side
    727,655.76x = 407,055,216,849.06
  5. Step 5: Solve for x
    x = 407,055,216,849.06/727,655.76
  6. Step 6: Final answer
    x = 559,406.30

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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.