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Finding the Fourth Proportional to 665,844, 918,864.72 and 364,038

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Solution

The fourth proportional to 665,844, 918,864.72 and 364,038 is: 502,372.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,844 : 918,864.72 = 364,038 : x
  2. Step 2: Convert to fraction form
    665,844/918,864.72 = 364,038/x
  3. Step 3: Cross multiply
    665,844x = 918,864.72 × 364,038
  4. Step 4: Simplify right side
    665,844x = 334,501,674,939.36
  5. Step 5: Solve for x
    x = 334,501,674,939.36/665,844
  6. Step 6: Final answer
    x = 502,372.44

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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.