Home / 379,770.72-523,607.25-243,564.36

Finding the Fourth Proportional to 379,770.72, 523,607.25 and 243,564.36

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Solution

The fourth proportional to 379,770.72, 523,607.25 and 243,564.36 is: 335,813.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,770.72 : 523,607.25 = 243,564.36 : x
  2. Step 2: Convert to fraction form
    379,770.72/523,607.25 = 243,564.36/x
  3. Step 3: Cross multiply
    379,770.72x = 523,607.25 × 243,564.36
  4. Step 4: Simplify right side
    379,770.72x = 127,532,064,737.61
  5. Step 5: Solve for x
    x = 127,532,064,737.61/379,770.72
  6. Step 6: Final answer
    x = 335,813.32

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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.