Home / 384,895.41-577,282.46-128,726.03

Finding the Fourth Proportional to 384,895.41, 577,282.46 and 128,726.03

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Solution

The fourth proportional to 384,895.41, 577,282.46 and 128,726.03 is: 193,068.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,895.41 : 577,282.46 = 128,726.03 : x
  2. Step 2: Convert to fraction form
    384,895.41/577,282.46 = 128,726.03/x
  3. Step 3: Cross multiply
    384,895.41x = 577,282.46 × 128,726.03
  4. Step 4: Simplify right side
    384,895.41x = 74,311,276,217.11
  5. Step 5: Solve for x
    x = 74,311,276,217.11/384,895.41
  6. Step 6: Final answer
    x = 193,068.75

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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.