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Finding the Fourth Proportional to 384,699.70, 578,033.70 and 341,397.10

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Solution

The fourth proportional to 384,699.70, 578,033.70 and 341,397.10 is: 512,969.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,699.70 : 578,033.70 = 341,397.10 : x
  2. Step 2: Convert to fraction form
    384,699.70/578,033.70 = 341,397.10/x
  3. Step 3: Cross multiply
    384,699.70x = 578,033.70 × 341,397.10
  4. Step 4: Simplify right side
    384,699.70x = 197,339,028,882.27
  5. Step 5: Solve for x
    x = 197,339,028,882.27/384,699.70
  6. Step 6: Final answer
    x = 512,969.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.