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Finding the Fourth Proportional to 476,059.68, 656,982.90 and 285,036.57

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Solution

The fourth proportional to 476,059.68, 656,982.90 and 285,036.57 is: 393,362.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,059.68 : 656,982.90 = 285,036.57 : x
  2. Step 2: Convert to fraction form
    476,059.68/656,982.90 = 285,036.57/x
  3. Step 3: Cross multiply
    476,059.68x = 656,982.90 × 285,036.57
  4. Step 4: Simplify right side
    476,059.68x = 187,264,152,364.65
  5. Step 5: Solve for x
    x = 187,264,152,364.65/476,059.68
  6. Step 6: Final answer
    x = 393,362.77

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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.