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Finding the Fourth Proportional to 666,318.48, 919,526.76 and 364,506

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Solution

The fourth proportional to 666,318.48, 919,526.76 and 364,506 is: 503,022.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,318.48 : 919,526.76 = 364,506 : x
  2. Step 2: Convert to fraction form
    666,318.48/919,526.76 = 364,506/x
  3. Step 3: Cross multiply
    666,318.48x = 919,526.76 × 364,506
  4. Step 4: Simplify right side
    666,318.48x = 335,173,021,180.56
  5. Step 5: Solve for x
    x = 335,173,021,180.56/666,318.48
  6. Step 6: Final answer
    x = 503,022.25

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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.