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Finding the Fourth Proportional to 648,249.77, 894,599.01 and 357,860.66

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Solution

The fourth proportional to 648,249.77, 894,599.01 and 357,860.66 is: 493,855.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,249.77 : 894,599.01 = 357,860.66 : x
  2. Step 2: Convert to fraction form
    648,249.77/894,599.01 = 357,860.66/x
  3. Step 3: Cross multiply
    648,249.77x = 894,599.01 × 357,860.66
  4. Step 4: Simplify right side
    648,249.77x = 320,141,792,153.95
  5. Step 5: Solve for x
    x = 320,141,792,153.95/648,249.77
  6. Step 6: Final answer
    x = 493,855.62

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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.