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Finding the Fourth Proportional to 677,148.28, 934,458.66 and 371,219.10

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Solution

The fourth proportional to 677,148.28, 934,458.66 and 371,219.10 is: 512,279.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,148.28 : 934,458.66 = 371,219.10 : x
  2. Step 2: Convert to fraction form
    677,148.28/934,458.66 = 371,219.10/x
  3. Step 3: Cross multiply
    677,148.28x = 934,458.66 × 371,219.10
  4. Step 4: Simplify right side
    677,148.28x = 346,888,902,752.41
  5. Step 5: Solve for x
    x = 346,888,902,752.41/677,148.28
  6. Step 6: Final answer
    x = 512,279.09

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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.