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Finding the Fourth Proportional to 568,231.61, 784,148.14 and 310,113.66

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Solution

The fourth proportional to 568,231.61, 784,148.14 and 310,113.66 is: 427,950.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,231.61 : 784,148.14 = 310,113.66 : x
  2. Step 2: Convert to fraction form
    568,231.61/784,148.14 = 310,113.66/x
  3. Step 3: Cross multiply
    568,231.61x = 784,148.14 × 310,113.66
  4. Step 4: Simplify right side
    568,231.61x = 243,175,053,005.79
  5. Step 5: Solve for x
    x = 243,175,053,005.79/568,231.61
  6. Step 6: Final answer
    x = 427,950.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.