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Finding the Fourth Proportional to 647,598.88, 893,692.26 and 357,221.56

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Solution

The fourth proportional to 647,598.88, 893,692.26 and 357,221.56 is: 492,968.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,598.88 : 893,692.26 = 357,221.56 : x
  2. Step 2: Convert to fraction form
    647,598.88/893,692.26 = 357,221.56/x
  3. Step 3: Cross multiply
    647,598.88x = 893,692.26 × 357,221.56
  4. Step 4: Simplify right side
    647,598.88x = 319,246,143,277.13
  5. Step 5: Solve for x
    x = 319,246,143,277.13/647,598.88
  6. Step 6: Final answer
    x = 492,968.96

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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.