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Finding the Fourth Proportional to 648,250.49, 894,645.20 and 357,913.94

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Solution

The fourth proportional to 648,250.49, 894,645.20 and 357,913.94 is: 493,954.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,250.49 : 894,645.20 = 357,913.94 : x
  2. Step 2: Convert to fraction form
    648,250.49/894,645.20 = 357,913.94/x
  3. Step 3: Cross multiply
    648,250.49x = 894,645.20 × 357,913.94
  4. Step 4: Simplify right side
    648,250.49x = 320,205,989,888.03
  5. Step 5: Solve for x
    x = 320,205,989,888.03/648,250.49
  6. Step 6: Final answer
    x = 493,954.10

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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.