Home / 349,747.40-524,621.10-311,693.60

Finding the Fourth Proportional to 349,747.40, 524,621.10 and 311,693.60

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Solution

The fourth proportional to 349,747.40, 524,621.10 and 311,693.60 is: 467,540.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,747.40 : 524,621.10 = 311,693.60 : x
  2. Step 2: Convert to fraction form
    349,747.40/524,621.10 = 311,693.60/x
  3. Step 3: Cross multiply
    349,747.40x = 524,621.10 × 311,693.60
  4. Step 4: Simplify right side
    349,747.40x = 163,521,039,294.96
  5. Step 5: Solve for x
    x = 163,521,039,294.96/349,747.40
  6. Step 6: Final answer
    x = 467,540.40

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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.