Home / 885,099.21-1,221,435.11-497,914.90

Finding the Fourth Proportional to 885,099.21, 1,221,435.11 and 497,914.90

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Solution

The fourth proportional to 885,099.21, 1,221,435.11 and 497,914.90 is: 687,121.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,099.21 : 1,221,435.11 = 497,914.90 : x
  2. Step 2: Convert to fraction form
    885,099.21/1,221,435.11 = 497,914.90/x
  3. Step 3: Cross multiply
    885,099.21x = 1,221,435.11 × 497,914.90
  4. Step 4: Simplify right side
    885,099.21x = 608,170,739,893.64
  5. Step 5: Solve for x
    x = 608,170,739,893.64/885,099.21
  6. Step 6: Final answer
    x = 687,121.55

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Double scale
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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.