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Finding the Fourth Proportional to 648,282.20, 894,605.95 and 357,887.53

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Solution

The fourth proportional to 648,282.20, 894,605.95 and 357,887.53 is: 493,871.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,282.20 : 894,605.95 = 357,887.53 : x
  2. Step 2: Convert to fraction form
    648,282.20/894,605.95 = 357,887.53/x
  3. Step 3: Cross multiply
    648,282.20x = 894,605.95 × 357,887.53
  4. Step 4: Simplify right side
    648,282.20x = 320,168,313,768.80
  5. Step 5: Solve for x
    x = 320,168,313,768.80/648,282.20
  6. Step 6: Final answer
    x = 493,871.83

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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.