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Finding the Fourth Proportional to 666,757.74, 920,118.51 and 360,827.37

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Solution

The fourth proportional to 666,757.74, 920,118.51 and 360,827.37 is: 497,937.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,757.74 : 920,118.51 = 360,827.37 : x
  2. Step 2: Convert to fraction form
    666,757.74/920,118.51 = 360,827.37/x
  3. Step 3: Cross multiply
    666,757.74x = 920,118.51 × 360,827.37
  4. Step 4: Simplify right side
    666,757.74x = 332,003,942,051.62
  5. Step 5: Solve for x
    x = 332,003,942,051.62/666,757.74
  6. Step 6: Final answer
    x = 497,937.89

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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.