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Finding the Fourth Proportional to 568,235.36, 784,153.31 and 310,117.43

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Solution

The fourth proportional to 568,235.36, 784,153.31 and 310,117.43 is: 427,955.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,235.36 : 784,153.31 = 310,117.43 : x
  2. Step 2: Convert to fraction form
    568,235.36/784,153.31 = 310,117.43/x
  3. Step 3: Cross multiply
    568,235.36x = 784,153.31 × 310,117.43
  4. Step 4: Simplify right side
    568,235.36x = 243,179,603,751.84
  5. Step 5: Solve for x
    x = 243,179,603,751.84/568,235.36
  6. Step 6: Final answer
    x = 427,955.78

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Double scale
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Similar ratio
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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.