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Finding the Fourth Proportional to 648,049.60, 894,266.49 and 357,663.79

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Solution

The fourth proportional to 648,049.60, 894,266.49 and 357,663.79 is: 493,552.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,049.60 : 894,266.49 = 357,663.79 : x
  2. Step 2: Convert to fraction form
    648,049.60/894,266.49 = 357,663.79/x
  3. Step 3: Cross multiply
    648,049.60x = 894,266.49 × 357,663.79
  4. Step 4: Simplify right side
    648,049.60x = 319,846,742,083.40
  5. Step 5: Solve for x
    x = 319,846,742,083.40/648,049.60
  6. Step 6: Final answer
    x = 493,552.87

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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.