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Finding the Fourth Proportional to 858,404.72, 1,184,655.04 and 495,843.84

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Solution

The fourth proportional to 858,404.72, 1,184,655.04 and 495,843.84 is: 684,297.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,404.72 : 1,184,655.04 = 495,843.84 : x
  2. Step 2: Convert to fraction form
    858,404.72/1,184,655.04 = 495,843.84/x
  3. Step 3: Cross multiply
    858,404.72x = 1,184,655.04 × 495,843.84
  4. Step 4: Simplify right side
    858,404.72x = 587,403,904,108.95
  5. Step 5: Solve for x
    x = 587,403,904,108.95/858,404.72
  6. Step 6: Final answer
    x = 684,297.15

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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.