Home / 379,500.05-523,783.13-243,705.58

Finding the Fourth Proportional to 379,500.05, 523,783.13 and 243,705.58

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Solution

The fourth proportional to 379,500.05, 523,783.13 and 243,705.58 is: 336,360.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,500.05 : 523,783.13 = 243,705.58 : x
  2. Step 2: Convert to fraction form
    379,500.05/523,783.13 = 243,705.58/x
  3. Step 3: Cross multiply
    379,500.05x = 523,783.13 × 243,705.58
  4. Step 4: Simplify right side
    379,500.05x = 127,648,868,962.88
  5. Step 5: Solve for x
    x = 127,648,868,962.88/379,500.05
  6. Step 6: Final answer
    x = 336,360.61

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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.