Home / 553,999.05-831,025.91-288,278.55

Finding the Fourth Proportional to 553,999.05, 831,025.91 and 288,278.55

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Solution

The fourth proportional to 553,999.05, 831,025.91 and 288,278.55 is: 432,432.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,999.05 : 831,025.91 = 288,278.55 : x
  2. Step 2: Convert to fraction form
    553,999.05/831,025.91 = 288,278.55/x
  3. Step 3: Cross multiply
    553,999.05x = 831,025.91 × 288,278.55
  4. Step 4: Simplify right side
    553,999.05x = 239,566,945,067.93
  5. Step 5: Solve for x
    x = 239,566,945,067.93/553,999.05
  6. Step 6: Final answer
    x = 432,432.05

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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.