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Finding the Fourth Proportional to 568,124.80, 784,028.51 and 313,492.39

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Solution

The fourth proportional to 568,124.80, 784,028.51 and 313,492.39 is: 432,628.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,124.80 : 784,028.51 = 313,492.39 : x
  2. Step 2: Convert to fraction form
    568,124.80/784,028.51 = 313,492.39/x
  3. Step 3: Cross multiply
    568,124.80x = 784,028.51 × 313,492.39
  4. Step 4: Simplify right side
    568,124.80x = 245,786,971,428.04
  5. Step 5: Solve for x
    x = 245,786,971,428.04/568,124.80
  6. Step 6: Final answer
    x = 432,628.48

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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.