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Finding the Fourth Proportional to 666,173.36, 919,341 and 364,367.36

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Solution

The fourth proportional to 666,173.36, 919,341 and 364,367.36 is: 502,838.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,173.36 : 919,341 = 364,367.36 : x
  2. Step 2: Convert to fraction form
    666,173.36/919,341 = 364,367.36/x
  3. Step 3: Cross multiply
    666,173.36x = 919,341 × 364,367.36
  4. Step 4: Simplify right side
    666,173.36x = 334,977,853,109.76
  5. Step 5: Solve for x
    x = 334,977,853,109.76/666,173.36
  6. Step 6: Final answer
    x = 502,838.86

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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.