Home / 901,405.60-1,243,954.40-493,500.56

Finding the Fourth Proportional to 901,405.60, 1,243,954.40 and 493,500.56

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Solution

The fourth proportional to 901,405.60, 1,243,954.40 and 493,500.56 is: 681,038.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,405.60 : 1,243,954.40 = 493,500.56 : x
  2. Step 2: Convert to fraction form
    901,405.60/1,243,954.40 = 493,500.56/x
  3. Step 3: Cross multiply
    901,405.60x = 1,243,954.40 × 493,500.56
  4. Step 4: Simplify right side
    901,405.60x = 613,892,193,014.46
  5. Step 5: Solve for x
    x = 613,892,193,014.46/901,405.60
  6. Step 6: Final answer
    x = 681,038.81

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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.