Home / 1,992,905.40-2,989,358.10-496,997.40

Finding the Fourth Proportional to 1,992,905.40, 2,989,358.10 and 496,997.40

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Solution

The fourth proportional to 1,992,905.40, 2,989,358.10 and 496,997.40 is: 745,496.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,905.40 : 2,989,358.10 = 496,997.40 : x
  2. Step 2: Convert to fraction form
    1,992,905.40/2,989,358.10 = 496,997.40/x
  3. Step 3: Cross multiply
    1,992,905.40x = 2,989,358.10 × 496,997.40
  4. Step 4: Simplify right side
    1,992,905.40x = 1,485,703,203,368.94
  5. Step 5: Solve for x
    x = 1,485,703,203,368.94/1,992,905.40
  6. Step 6: Final answer
    x = 745,496.10

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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.