Home / 644,214.84-889,046.07-357,736.05

Finding the Fourth Proportional to 644,214.84, 889,046.07 and 357,736.05

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Solution

The fourth proportional to 644,214.84, 889,046.07 and 357,736.05 is: 493,692.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,214.84 : 889,046.07 = 357,736.05 : x
  2. Step 2: Convert to fraction form
    644,214.84/889,046.07 = 357,736.05/x
  3. Step 3: Cross multiply
    644,214.84x = 889,046.07 × 357,736.05
  4. Step 4: Simplify right side
    644,214.84x = 318,043,829,349.82
  5. Step 5: Solve for x
    x = 318,043,829,349.82/644,214.84
  6. Step 6: Final answer
    x = 493,692.18

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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.