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Finding the Fourth Proportional to 668,666.84, 922,757.13 and 362,743.40

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Solution

The fourth proportional to 668,666.84, 922,757.13 and 362,743.40 is: 500,584.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,666.84 : 922,757.13 = 362,743.40 : x
  2. Step 2: Convert to fraction form
    668,666.84/922,757.13 = 362,743.40/x
  3. Step 3: Cross multiply
    668,666.84x = 922,757.13 × 362,743.40
  4. Step 4: Simplify right side
    668,666.84x = 334,724,061,017.34
  5. Step 5: Solve for x
    x = 334,724,061,017.34/668,666.84
  6. Step 6: Final answer
    x = 500,584.21

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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.