Home / 305,419.24-455,648.96-288,885.52

Finding the Fourth Proportional to 305,419.24, 455,648.96 and 288,885.52

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Solution

The fourth proportional to 305,419.24, 455,648.96 and 288,885.52 is: 430,982.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,419.24 : 455,648.96 = 288,885.52 : x
  2. Step 2: Convert to fraction form
    305,419.24/455,648.96 = 288,885.52/x
  3. Step 3: Cross multiply
    305,419.24x = 455,648.96 × 288,885.52
  4. Step 4: Simplify right side
    305,419.24x = 131,630,386,747.06
  5. Step 5: Solve for x
    x = 131,630,386,747.06/305,419.24
  6. Step 6: Final answer
    x = 430,982.63

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.