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Finding the Fourth Proportional to 666,343, 919,566.66 and 364,543.48

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Solution

The fourth proportional to 666,343, 919,566.66 and 364,543.48 is: 503,077.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,343 : 919,566.66 = 364,543.48 : x
  2. Step 2: Convert to fraction form
    666,343/919,566.66 = 364,543.48/x
  3. Step 3: Cross multiply
    666,343x = 919,566.66 × 364,543.48
  4. Step 4: Simplify right side
    666,343x = 335,222,030,328.38
  5. Step 5: Solve for x
    x = 335,222,030,328.38/666,343
  6. Step 6: Final answer
    x = 503,077.29

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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.