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Finding the Fourth Proportional to 669,605.08, 923,712.24 and 427,633.24

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Solution

The fourth proportional to 669,605.08, 923,712.24 and 427,633.24 is: 589,914.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,605.08 : 923,712.24 = 427,633.24 : x
  2. Step 2: Convert to fraction form
    669,605.08/923,712.24 = 427,633.24/x
  3. Step 3: Cross multiply
    669,605.08x = 923,712.24 × 427,633.24
  4. Step 4: Simplify right side
    669,605.08x = 395,010,058,018.86
  5. Step 5: Solve for x
    x = 395,010,058,018.86/669,605.08
  6. Step 6: Final answer
    x = 589,914.97

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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.