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Finding the Fourth Proportional to 617,415.87, 926,123.84 and 407,004.60

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Solution

The fourth proportional to 617,415.87, 926,123.84 and 407,004.60 is: 610,506.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,415.87 : 926,123.84 = 407,004.60 : x
  2. Step 2: Convert to fraction form
    617,415.87/926,123.84 = 407,004.60/x
  3. Step 3: Cross multiply
    617,415.87x = 926,123.84 × 407,004.60
  4. Step 4: Simplify right side
    617,415.87x = 376,936,663,049.66
  5. Step 5: Solve for x
    x = 376,936,663,049.66/617,415.87
  6. Step 6: Final answer
    x = 610,506.92

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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.