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Finding the Fourth Proportional to 665,897.90, 918,942.64 and 364,091.90

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Solution

The fourth proportional to 665,897.90, 918,942.64 and 364,091.90 is: 502,448.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,897.90 : 918,942.64 = 364,091.90 : x
  2. Step 2: Convert to fraction form
    665,897.90/918,942.64 = 364,091.90/x
  3. Step 3: Cross multiply
    665,897.90x = 918,942.64 × 364,091.90
  4. Step 4: Simplify right side
    665,897.90x = 334,579,566,283.67
  5. Step 5: Solve for x
    x = 334,579,566,283.67/665,897.90
  6. Step 6: Final answer
    x = 502,448.75

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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.