Home / 900,782.96-1,243,028.43-492,892.74

Finding the Fourth Proportional to 900,782.96, 1,243,028.43 and 492,892.74

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Solution

The fourth proportional to 900,782.96, 1,243,028.43 and 492,892.74 is: 680,163.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,782.96 : 1,243,028.43 = 492,892.74 : x
  2. Step 2: Convert to fraction form
    900,782.96/1,243,028.43 = 492,892.74/x
  3. Step 3: Cross multiply
    900,782.96x = 1,243,028.43 × 492,892.74
  4. Step 4: Simplify right side
    900,782.96x = 612,679,688,760.60
  5. Step 5: Solve for x
    x = 612,679,688,760.60/900,782.96
  6. Step 6: Final answer
    x = 680,163.50

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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.