Home / 379,278.73-523,360.02-209,502.73

Finding the Fourth Proportional to 379,278.73, 523,360.02 and 209,502.73

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Solution

The fourth proportional to 379,278.73, 523,360.02 and 209,502.73 is: 289,089.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,278.73 : 523,360.02 = 209,502.73 : x
  2. Step 2: Convert to fraction form
    379,278.73/523,360.02 = 209,502.73/x
  3. Step 3: Cross multiply
    379,278.73x = 523,360.02 × 209,502.73
  4. Step 4: Simplify right side
    379,278.73x = 109,645,352,962.86
  5. Step 5: Solve for x
    x = 109,645,352,962.86/379,278.73
  6. Step 6: Final answer
    x = 289,089.12

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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.