Home / 384,721.47-577,112.00-128,554.93

Finding the Fourth Proportional to 384,721.47, 577,112.00 and 128,554.93

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Solution

The fourth proportional to 384,721.47, 577,112.00 and 128,554.93 is: 192,842.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,721.47 : 577,112.00 = 128,554.93 : x
  2. Step 2: Convert to fraction form
    384,721.47/577,112.00 = 128,554.93/x
  3. Step 3: Cross multiply
    384,721.47x = 577,112.00 × 128,554.93
  4. Step 4: Simplify right side
    384,721.47x = 74,190,589,233.83
  5. Step 5: Solve for x
    x = 74,190,589,233.83/384,721.47
  6. Step 6: Final answer
    x = 192,842.34

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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.