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Finding the Fourth Proportional to 666,341.01, 999,494.91 and 311,751.77

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Solution

The fourth proportional to 666,341.01, 999,494.91 and 311,751.77 is: 467,619.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,341.01 : 999,494.91 = 311,751.77 : x
  2. Step 2: Convert to fraction form
    666,341.01/999,494.91 = 311,751.77/x
  3. Step 3: Cross multiply
    666,341.01x = 999,494.91 × 311,751.77
  4. Step 4: Simplify right side
    666,341.01x = 311,594,302,301.02
  5. Step 5: Solve for x
    x = 311,594,302,301.02/666,341.01
  6. Step 6: Final answer
    x = 467,619.88

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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.