Home / 727,675.60-1,004,266.20-405,438.16

Finding the Fourth Proportional to 727,675.60, 1,004,266.20 and 405,438.16

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Solution

The fourth proportional to 727,675.60, 1,004,266.20 and 405,438.16 is: 559,545.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,675.60 : 1,004,266.20 = 405,438.16 : x
  2. Step 2: Convert to fraction form
    727,675.60/1,004,266.20 = 405,438.16/x
  3. Step 3: Cross multiply
    727,675.60x = 1,004,266.20 × 405,438.16
  4. Step 4: Simplify right side
    727,675.60x = 407,167,840,278.19
  5. Step 5: Solve for x
    x = 407,167,840,278.19/727,675.60
  6. Step 6: Final answer
    x = 559,545.82

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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.