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Finding the Fourth Proportional to 568,528.02, 784,548.06 and 310,400.22

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Solution

The fourth proportional to 568,528.02, 784,548.06 and 310,400.22 is: 428,341.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,528.02 : 784,548.06 = 310,400.22 : x
  2. Step 2: Convert to fraction form
    568,528.02/784,548.06 = 310,400.22/x
  3. Step 3: Cross multiply
    568,528.02x = 784,548.06 × 310,400.22
  4. Step 4: Simplify right side
    568,528.02x = 243,523,890,424.57
  5. Step 5: Solve for x
    x = 243,523,890,424.57/568,528.02
  6. Step 6: Final answer
    x = 428,341.05

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Double scale
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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.