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Finding the Fourth Proportional to 647,120.08, 893,051.52 and 360,637.60

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Solution

The fourth proportional to 647,120.08, 893,051.52 and 360,637.60 is: 497,694.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,120.08 : 893,051.52 = 360,637.60 : x
  2. Step 2: Convert to fraction form
    647,120.08/893,051.52 = 360,637.60/x
  3. Step 3: Cross multiply
    647,120.08x = 893,051.52 × 360,637.60
  4. Step 4: Simplify right side
    647,120.08x = 322,067,956,849.15
  5. Step 5: Solve for x
    x = 322,067,956,849.15/647,120.08
  6. Step 6: Final answer
    x = 497,694.27

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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.