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Finding the Fourth Proportional to 677,455.20, 934,889.50 and 371,533.74

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Solution

The fourth proportional to 677,455.20, 934,889.50 and 371,533.74 is: 512,717.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,455.20 : 934,889.50 = 371,533.74 : x
  2. Step 2: Convert to fraction form
    677,455.20/934,889.50 = 371,533.74/x
  3. Step 3: Cross multiply
    677,455.20x = 934,889.50 × 371,533.74
  4. Step 4: Simplify right side
    677,455.20x = 347,342,992,421.73
  5. Step 5: Solve for x
    x = 347,342,992,421.73/677,455.20
  6. Step 6: Final answer
    x = 512,717.29

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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.