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Finding the Fourth Proportional to 666,006.48, 919,070.28 and 364,194

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Solution

The fourth proportional to 666,006.48, 919,070.28 and 364,194 is: 502,577.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,006.48 : 919,070.28 = 364,194 : x
  2. Step 2: Convert to fraction form
    666,006.48/919,070.28 = 364,194/x
  3. Step 3: Cross multiply
    666,006.48x = 919,070.28 × 364,194
  4. Step 4: Simplify right side
    666,006.48x = 334,719,881,554.32
  5. Step 5: Solve for x
    x = 334,719,881,554.32/666,006.48
  6. Step 6: Final answer
    x = 502,577.51

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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.