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Finding the Fourth Proportional to 492,615, 679,808.52 and 266,260.50

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Solution

The fourth proportional to 492,615, 679,808.52 and 266,260.50 is: 367,439.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,615 : 679,808.52 = 266,260.50 : x
  2. Step 2: Convert to fraction form
    492,615/679,808.52 = 266,260.50/x
  3. Step 3: Cross multiply
    492,615x = 679,808.52 × 266,260.50
  4. Step 4: Simplify right side
    492,615x = 181,006,156,439.46
  5. Step 5: Solve for x
    x = 181,006,156,439.46/492,615
  6. Step 6: Final answer
    x = 367,439.39

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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.