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Finding the Fourth Proportional to 666,142.26, 919,276.30 and 364,336.26

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Solution

The fourth proportional to 666,142.26, 919,276.30 and 364,336.26 is: 502,784.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,142.26 : 919,276.30 = 364,336.26 : x
  2. Step 2: Convert to fraction form
    666,142.26/919,276.30 = 364,336.26/x
  3. Step 3: Cross multiply
    666,142.26x = 919,276.30 × 364,336.26
  4. Step 4: Simplify right side
    666,142.26x = 334,925,689,048.64
  5. Step 5: Solve for x
    x = 334,925,689,048.64/666,142.26
  6. Step 6: Final answer
    x = 502,784.03

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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.