Home / 838,501.80-1,257,752.70-269,881.80

Finding the Fourth Proportional to 838,501.80, 1,257,752.70 and 269,881.80

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Solution

The fourth proportional to 838,501.80, 1,257,752.70 and 269,881.80 is: 404,822.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,501.80 : 1,257,752.70 = 269,881.80 : x
  2. Step 2: Convert to fraction form
    838,501.80/1,257,752.70 = 269,881.80/x
  3. Step 3: Cross multiply
    838,501.80x = 1,257,752.70 × 269,881.80
  4. Step 4: Simplify right side
    838,501.80x = 339,444,562,630.86
  5. Step 5: Solve for x
    x = 339,444,562,630.86/838,501.80
  6. Step 6: Final answer
    x = 404,822.70

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Double scale
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Similar ratio
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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.