Home / 413,035.02-619,589.44-128,727.98

Finding the Fourth Proportional to 413,035.02, 619,589.44 and 128,727.98

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Solution

The fourth proportional to 413,035.02, 619,589.44 and 128,727.98 is: 193,103.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,035.02 : 619,589.44 = 128,727.98 : x
  2. Step 2: Convert to fraction form
    413,035.02/619,589.44 = 128,727.98/x
  3. Step 3: Cross multiply
    413,035.02x = 619,589.44 × 128,727.98
  4. Step 4: Simplify right side
    413,035.02x = 79,758,499,731.12
  5. Step 5: Solve for x
    x = 79,758,499,731.12/413,035.02
  6. Step 6: Final answer
    x = 193,103.48

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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.