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Finding the Fourth Proportional to 561,890.94, 842,442.48 and 206,858.76

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Solution

The fourth proportional to 561,890.94, 842,442.48 and 206,858.76 is: 310,143.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,890.94 : 842,442.48 = 206,858.76 : x
  2. Step 2: Convert to fraction form
    561,890.94/842,442.48 = 206,858.76/x
  3. Step 3: Cross multiply
    561,890.94x = 842,442.48 × 206,858.76
  4. Step 4: Simplify right side
    561,890.94x = 174,266,606,784.13
  5. Step 5: Solve for x
    x = 174,266,606,784.13/561,890.94
  6. Step 6: Final answer
    x = 310,143.12

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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.