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Finding the Fourth Proportional to 648,266.47, 894,697.89 and 361,805.02

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Solution

The fourth proportional to 648,266.47, 894,697.89 and 361,805.02 is: 499,341.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,266.47 : 894,697.89 = 361,805.02 : x
  2. Step 2: Convert to fraction form
    648,266.47/894,697.89 = 361,805.02/x
  3. Step 3: Cross multiply
    648,266.47x = 894,697.89 × 361,805.02
  4. Step 4: Simplify right side
    648,266.47x = 323,706,187,985.41
  5. Step 5: Solve for x
    x = 323,706,187,985.41/648,266.47
  6. Step 6: Final answer
    x = 499,341.25

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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.