Home / 669,480.98-923,425.24-427,656.18

Finding the Fourth Proportional to 669,480.98, 923,425.24 and 427,656.18

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Solution

The fourth proportional to 669,480.98, 923,425.24 and 427,656.18 is: 589,872.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,480.98 : 923,425.24 = 427,656.18 : x
  2. Step 2: Convert to fraction form
    669,480.98/923,425.24 = 427,656.18/x
  3. Step 3: Cross multiply
    669,480.98x = 923,425.24 × 427,656.18
  4. Step 4: Simplify right side
    669,480.98x = 394,908,510,653.98
  5. Step 5: Solve for x
    x = 394,908,510,653.98/669,480.98
  6. Step 6: Final answer
    x = 589,872.64

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Double scale
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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.