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Finding the Fourth Proportional to 676,813.10, 934,002.09 and 375,007.10

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Solution

The fourth proportional to 676,813.10, 934,002.09 and 375,007.10 is: 517,509.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,813.10 : 934,002.09 = 375,007.10 : x
  2. Step 2: Convert to fraction form
    676,813.10/934,002.09 = 375,007.10/x
  3. Step 3: Cross multiply
    676,813.10x = 934,002.09 × 375,007.10
  4. Step 4: Simplify right side
    676,813.10x = 350,257,410,494.83
  5. Step 5: Solve for x
    x = 350,257,410,494.83/676,813.10
  6. Step 6: Final answer
    x = 517,509.80

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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.