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Finding the Fourth Proportional to 404,795.86, 558,384.10 and 261,555.90

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Solution

The fourth proportional to 404,795.86, 558,384.10 and 261,555.90 is: 360,795.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,795.86 : 558,384.10 = 261,555.90 : x
  2. Step 2: Convert to fraction form
    404,795.86/558,384.10 = 261,555.90/x
  3. Step 3: Cross multiply
    404,795.86x = 558,384.10 × 261,555.90
  4. Step 4: Simplify right side
    404,795.86x = 146,048,655,821.19
  5. Step 5: Solve for x
    x = 146,048,655,821.19/404,795.86
  6. Step 6: Final answer
    x = 360,795.82

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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.