Home / 513,582.30-769,742.47-288,469.53

Finding the Fourth Proportional to 513,582.30, 769,742.47 and 288,469.53

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Solution

The fourth proportional to 513,582.30, 769,742.47 and 288,469.53 is: 432,349.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,582.30 : 769,742.47 = 288,469.53 : x
  2. Step 2: Convert to fraction form
    513,582.30/769,742.47 = 288,469.53/x
  3. Step 3: Cross multiply
    513,582.30x = 769,742.47 × 288,469.53
  4. Step 4: Simplify right side
    513,582.30x = 222,047,247,820.77
  5. Step 5: Solve for x
    x = 222,047,247,820.77/513,582.30
  6. Step 6: Final answer
    x = 432,349.88

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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.