Home / 753,178.47-1,129,958.93-348,662.31

Finding the Fourth Proportional to 753,178.47, 1,129,958.93 and 348,662.31

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Solution

The fourth proportional to 753,178.47, 1,129,958.93 and 348,662.31 is: 523,081.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,178.47 : 1,129,958.93 = 348,662.31 : x
  2. Step 2: Convert to fraction form
    753,178.47/1,129,958.93 = 348,662.31/x
  3. Step 3: Cross multiply
    753,178.47x = 1,129,958.93 × 348,662.31
  4. Step 4: Simplify right side
    753,178.47x = 393,974,083,345.82
  5. Step 5: Solve for x
    x = 393,974,083,345.82/753,178.47
  6. Step 6: Final answer
    x = 523,081.98

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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.