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Finding the Fourth Proportional to 647,710.76, 893,852.34 and 361,200.08

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Solution

The fourth proportional to 647,710.76, 893,852.34 and 361,200.08 is: 498,462.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,710.76 : 893,852.34 = 361,200.08 : x
  2. Step 2: Convert to fraction form
    647,710.76/893,852.34 = 361,200.08/x
  3. Step 3: Cross multiply
    647,710.76x = 893,852.34 × 361,200.08
  4. Step 4: Simplify right side
    647,710.76x = 322,859,536,716.19
  5. Step 5: Solve for x
    x = 322,859,536,716.19/647,710.76
  6. Step 6: Final answer
    x = 498,462.52

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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.