Home / 379,333.09-523,492.37-209,576.53

Finding the Fourth Proportional to 379,333.09, 523,492.37 and 209,576.53

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Solution

The fourth proportional to 379,333.09, 523,492.37 and 209,576.53 is: 289,222.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,333.09 : 523,492.37 = 209,576.53 : x
  2. Step 2: Convert to fraction form
    379,333.09/523,492.37 = 209,576.53/x
  3. Step 3: Cross multiply
    379,333.09x = 523,492.37 × 209,576.53
  4. Step 4: Simplify right side
    379,333.09x = 109,711,714,386.08
  5. Step 5: Solve for x
    x = 109,711,714,386.08/379,333.09
  6. Step 6: Final answer
    x = 289,222.63

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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.