Home / 1,018,205.40-1,526,919.30-307,997.40

Finding the Fourth Proportional to 1,018,205.40, 1,526,919.30 and 307,997.40

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Solution

The fourth proportional to 1,018,205.40, 1,526,919.30 and 307,997.40 is: 461,878.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,205.40 : 1,526,919.30 = 307,997.40 : x
  2. Step 2: Convert to fraction form
    1,018,205.40/1,526,919.30 = 307,997.40/x
  3. Step 3: Cross multiply
    1,018,205.40x = 1,526,919.30 × 307,997.40
  4. Step 4: Simplify right side
    1,018,205.40x = 470,287,174,409.82
  5. Step 5: Solve for x
    x = 470,287,174,409.82/1,018,205.40
  6. Step 6: Final answer
    x = 461,878.49

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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.