Home / 328,548.57-492,822.86-128,962.95

Finding the Fourth Proportional to 328,548.57, 492,822.86 and 128,962.95

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Solution

The fourth proportional to 328,548.57, 492,822.86 and 128,962.95 is: 193,444.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,548.57 : 492,822.86 = 128,962.95 : x
  2. Step 2: Convert to fraction form
    328,548.57/492,822.86 = 128,962.95/x
  3. Step 3: Cross multiply
    328,548.57x = 492,822.86 × 128,962.95
  4. Step 4: Simplify right side
    328,548.57x = 63,555,889,208.22
  5. Step 5: Solve for x
    x = 63,555,889,208.22/328,548.57
  6. Step 6: Final answer
    x = 193,444.43

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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.