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Finding the Fourth Proportional to 668,975.52, 923,039.84 and 397,133.04

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Solution

The fourth proportional to 668,975.52, 923,039.84 and 397,133.04 is: 547,956.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,975.52 : 923,039.84 = 397,133.04 : x
  2. Step 2: Convert to fraction form
    668,975.52/923,039.84 = 397,133.04/x
  3. Step 3: Cross multiply
    668,975.52x = 923,039.84 × 397,133.04
  4. Step 4: Simplify right side
    668,975.52x = 366,569,617,700.31
  5. Step 5: Solve for x
    x = 366,569,617,700.31/668,975.52
  6. Step 6: Final answer
    x = 547,956.70

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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.