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Finding the Fourth Proportional to 324,417.35, 444,444.35 and 312,288.03

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Solution

The fourth proportional to 324,417.35, 444,444.35 and 312,288.03 is: 427,827.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,417.35 : 444,444.35 = 312,288.03 : x
  2. Step 2: Convert to fraction form
    324,417.35/444,444.35 = 312,288.03/x
  3. Step 3: Cross multiply
    324,417.35x = 444,444.35 × 312,288.03
  4. Step 4: Simplify right side
    324,417.35x = 138,794,646,722.47
  5. Step 5: Solve for x
    x = 138,794,646,722.47/324,417.35
  6. Step 6: Final answer
    x = 427,827.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.