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Finding the Fourth Proportional to 404,708.65, 558,498.75 and 223,420.83

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Solution

The fourth proportional to 404,708.65, 558,498.75 and 223,420.83 is: 308,321.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,708.65 : 558,498.75 = 223,420.83 : x
  2. Step 2: Convert to fraction form
    404,708.65/558,498.75 = 223,420.83/x
  3. Step 3: Cross multiply
    404,708.65x = 558,498.75 × 223,420.83
  4. Step 4: Simplify right side
    404,708.65x = 124,780,254,278.96
  5. Step 5: Solve for x
    x = 124,780,254,278.96/404,708.65
  6. Step 6: Final answer
    x = 308,321.19

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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.