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Finding the Fourth Proportional to 568,368.84, 784,349.08 and 313,720.10

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Solution

The fourth proportional to 568,368.84, 784,349.08 and 313,720.10 is: 432,933.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,368.84 : 784,349.08 = 313,720.10 : x
  2. Step 2: Convert to fraction form
    568,368.84/784,349.08 = 313,720.10/x
  3. Step 3: Cross multiply
    568,368.84x = 784,349.08 × 313,720.10
  4. Step 4: Simplify right side
    568,368.84x = 246,066,071,812.51
  5. Step 5: Solve for x
    x = 246,066,071,812.51/568,368.84
  6. Step 6: Final answer
    x = 432,933.78

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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.