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Finding the Fourth Proportional to 648,235.38, 894,614.40 and 357,902.94

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Solution

The fourth proportional to 648,235.38, 894,614.40 and 357,902.94 is: 493,933.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,235.38 : 894,614.40 = 357,902.94 : x
  2. Step 2: Convert to fraction form
    648,235.38/894,614.40 = 357,902.94/x
  3. Step 3: Cross multiply
    648,235.38x = 894,614.40 × 357,902.94
  4. Step 4: Simplify right side
    648,235.38x = 320,185,123,926.34
  5. Step 5: Solve for x
    x = 320,185,123,926.34/648,235.38
  6. Step 6: Final answer
    x = 493,933.43

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1.5x scale

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.