Home / 658,977.60-987,688.80-492,571.20

Finding the Fourth Proportional to 658,977.60, 987,688.80 and 492,571.20

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Solution

The fourth proportional to 658,977.60, 987,688.80 and 492,571.20 is: 738,275.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,977.60 : 987,688.80 = 492,571.20 : x
  2. Step 2: Convert to fraction form
    658,977.60/987,688.80 = 492,571.20/x
  3. Step 3: Cross multiply
    658,977.60x = 987,688.80 × 492,571.20
  4. Step 4: Simplify right side
    658,977.60x = 486,507,057,442.56
  5. Step 5: Solve for x
    x = 486,507,057,442.56/658,977.60
  6. Step 6: Final answer
    x = 738,275.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.