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Finding the Fourth Proportional to 666,029.79, 919,107.41 and 364,223.79

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Solution

The fourth proportional to 666,029.79, 919,107.41 and 364,223.79 is: 502,621.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,029.79 : 919,107.41 = 364,223.79 : x
  2. Step 2: Convert to fraction form
    666,029.79/919,107.41 = 364,223.79/x
  3. Step 3: Cross multiply
    666,029.79x = 919,107.41 × 364,223.79
  4. Step 4: Simplify right side
    666,029.79x = 334,760,782,466.17
  5. Step 5: Solve for x
    x = 334,760,782,466.17/666,029.79
  6. Step 6: Final answer
    x = 502,621.34

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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.