Home / 457,941.60-686,912.40-298,509.30

Finding the Fourth Proportional to 457,941.60, 686,912.40 and 298,509.30

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Solution

The fourth proportional to 457,941.60, 686,912.40 and 298,509.30 is: 447,763.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,941.60 : 686,912.40 = 298,509.30 : x
  2. Step 2: Convert to fraction form
    457,941.60/686,912.40 = 298,509.30/x
  3. Step 3: Cross multiply
    457,941.60x = 686,912.40 × 298,509.30
  4. Step 4: Simplify right side
    457,941.60x = 205,049,739,685.32
  5. Step 5: Solve for x
    x = 205,049,739,685.32/457,941.60
  6. Step 6: Final answer
    x = 447,763.95

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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.