Home / 1,455,730.32-2,008,880.70-811,136.76

Finding the Fourth Proportional to 1,455,730.32, 2,008,880.70 and 811,136.76

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Solution

The fourth proportional to 1,455,730.32, 2,008,880.70 and 811,136.76 is: 1,119,353.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455,730.32 : 2,008,880.70 = 811,136.76 : x
  2. Step 2: Convert to fraction form
    1,455,730.32/2,008,880.70 = 811,136.76/x
  3. Step 3: Cross multiply
    1,455,730.32x = 2,008,880.70 × 811,136.76
  4. Step 4: Simplify right side
    1,455,730.32x = 1,629,476,982,224.53
  5. Step 5: Solve for x
    x = 1,629,476,982,224.53/1,455,730.32
  6. Step 6: Final answer
    x = 1,119,353.61

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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.