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Finding the Fourth Proportional to 666,752.90, 920,118.92 and 360,829.26

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Solution

The fourth proportional to 666,752.90, 920,118.92 and 360,829.26 is: 497,944.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,752.90 : 920,118.92 = 360,829.26 : x
  2. Step 2: Convert to fraction form
    666,752.90/920,118.92 = 360,829.26/x
  3. Step 3: Cross multiply
    666,752.90x = 920,118.92 × 360,829.26
  4. Step 4: Simplify right side
    666,752.90x = 332,005,827,211.45
  5. Step 5: Solve for x
    x = 332,005,827,211.45/666,752.90
  6. Step 6: Final answer
    x = 497,944.34

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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.