Home / 816,135.90-1,224,203.85-484,359.90

Finding the Fourth Proportional to 816,135.90, 1,224,203.85 and 484,359.90

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Solution

The fourth proportional to 816,135.90, 1,224,203.85 and 484,359.90 is: 726,539.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,135.90 : 1,224,203.85 = 484,359.90 : x
  2. Step 2: Convert to fraction form
    816,135.90/1,224,203.85 = 484,359.90/x
  3. Step 3: Cross multiply
    816,135.90x = 1,224,203.85 × 484,359.90
  4. Step 4: Simplify right side
    816,135.90x = 592,955,254,365.62
  5. Step 5: Solve for x
    x = 592,955,254,365.62/816,135.90
  6. Step 6: Final answer
    x = 726,539.85

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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.