Home / 328,549.77-492,828.57-128,964.15

Finding the Fourth Proportional to 328,549.77, 492,828.57 and 128,964.15

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Solution

The fourth proportional to 328,549.77, 492,828.57 and 128,964.15 is: 193,447.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,549.77 : 492,828.57 = 128,964.15 : x
  2. Step 2: Convert to fraction form
    328,549.77/492,828.57 = 128,964.15/x
  3. Step 3: Cross multiply
    328,549.77x = 492,828.57 × 128,964.15
  4. Step 4: Simplify right side
    328,549.77x = 63,557,217,625.77
  5. Step 5: Solve for x
    x = 63,557,217,625.77/328,549.77
  6. Step 6: Final answer
    x = 193,447.76

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1.5x scale

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.