Home / 479,985.80-719,784.30-164,280.20

Finding the Fourth Proportional to 479,985.80, 719,784.30 and 164,280.20

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Solution

The fourth proportional to 479,985.80, 719,784.30 and 164,280.20 is: 246,353.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,985.80 : 719,784.30 = 164,280.20 : x
  2. Step 2: Convert to fraction form
    479,985.80/719,784.30 = 164,280.20/x
  3. Step 3: Cross multiply
    479,985.80x = 719,784.30 × 164,280.20
  4. Step 4: Simplify right side
    479,985.80x = 118,246,308,760.86
  5. Step 5: Solve for x
    x = 118,246,308,760.86/479,985.80
  6. Step 6: Final answer
    x = 246,353.76

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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.