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Finding the Fourth Proportional to 665,607.76, 918,536.48 and 363,801.04

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Solution

The fourth proportional to 665,607.76, 918,536.48 and 363,801.04 is: 502,044.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,607.76 : 918,536.48 = 363,801.04 : x
  2. Step 2: Convert to fraction form
    665,607.76/918,536.48 = 363,801.04/x
  3. Step 3: Cross multiply
    665,607.76x = 918,536.48 × 363,801.04
  4. Step 4: Simplify right side
    665,607.76x = 334,164,526,701.94
  5. Step 5: Solve for x
    x = 334,164,526,701.94/665,607.76
  6. Step 6: Final answer
    x = 502,044.22

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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.