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Finding the Fourth Proportional to 669,392.54, 923,533.58 and 427,814.49

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Solution

The fourth proportional to 669,392.54, 923,533.58 and 427,814.49 is: 590,238.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,392.54 : 923,533.58 = 427,814.49 : x
  2. Step 2: Convert to fraction form
    669,392.54/923,533.58 = 427,814.49/x
  3. Step 3: Cross multiply
    669,392.54x = 923,533.58 × 427,814.49
  4. Step 4: Simplify right side
    669,392.54x = 395,101,045,386.50
  5. Step 5: Solve for x
    x = 395,101,045,386.50/669,392.54
  6. Step 6: Final answer
    x = 590,238.20

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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.