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Finding the Fourth Proportional to 633,826.08, 874,686.87 and 347,340

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Solution

The fourth proportional to 633,826.08, 874,686.87 and 347,340 is: 479,332.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,826.08 : 874,686.87 = 347,340 : x
  2. Step 2: Convert to fraction form
    633,826.08/874,686.87 = 347,340/x
  3. Step 3: Cross multiply
    633,826.08x = 874,686.87 × 347,340
  4. Step 4: Simplify right side
    633,826.08x = 303,813,737,425.80
  5. Step 5: Solve for x
    x = 303,813,737,425.80/633,826.08
  6. Step 6: Final answer
    x = 479,332.97

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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.