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Finding the Fourth Proportional to 561,945.98, 842,480.76 and 381,555.74

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Solution

The fourth proportional to 561,945.98, 842,480.76 and 381,555.74 is: 572,036.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,945.98 : 842,480.76 = 381,555.74 : x
  2. Step 2: Convert to fraction form
    561,945.98/842,480.76 = 381,555.74/x
  3. Step 3: Cross multiply
    561,945.98x = 842,480.76 × 381,555.74
  4. Step 4: Simplify right side
    561,945.98x = 321,453,369,817.56
  5. Step 5: Solve for x
    x = 321,453,369,817.56/561,945.98
  6. Step 6: Final answer
    x = 572,036.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.