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Finding the Fourth Proportional to 917,149.51, 1,375,874.66 and 377,259.47

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Solution

The fourth proportional to 917,149.51, 1,375,874.66 and 377,259.47 is: 565,951.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,149.51 : 1,375,874.66 = 377,259.47 : x
  2. Step 2: Convert to fraction form
    917,149.51/1,375,874.66 = 377,259.47/x
  3. Step 3: Cross multiply
    917,149.51x = 1,375,874.66 × 377,259.47
  4. Step 4: Simplify right side
    917,149.51x = 519,061,745,018.03
  5. Step 5: Solve for x
    x = 519,061,745,018.03/917,149.51
  6. Step 6: Final answer
    x = 565,951.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.