Home / 727,815.66-1,004,372.33-405,518.87

Finding the Fourth Proportional to 727,815.66, 1,004,372.33 and 405,518.87

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Solution

The fourth proportional to 727,815.66, 1,004,372.33 and 405,518.87 is: 559,608.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,815.66 : 1,004,372.33 = 405,518.87 : x
  2. Step 2: Convert to fraction form
    727,815.66/1,004,372.33 = 405,518.87/x
  3. Step 3: Cross multiply
    727,815.66x = 1,004,372.33 × 405,518.87
  4. Step 4: Simplify right side
    727,815.66x = 407,291,925,271.41
  5. Step 5: Solve for x
    x = 407,291,925,271.41/727,815.66
  6. Step 6: Final answer
    x = 559,608.63

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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.