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Finding the Fourth Proportional to 669,409.52, 923,554.22 and 427,833.50

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Solution

The fourth proportional to 669,409.52, 923,554.22 and 427,833.50 is: 590,262.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,409.52 : 923,554.22 = 427,833.50 : x
  2. Step 2: Convert to fraction form
    669,409.52/923,554.22 = 427,833.50/x
  3. Step 3: Cross multiply
    669,409.52x = 923,554.22 × 427,833.50
  4. Step 4: Simplify right side
    669,409.52x = 395,127,434,382.37
  5. Step 5: Solve for x
    x = 395,127,434,382.37/669,409.52
  6. Step 6: Final answer
    x = 590,262.65

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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.