Home / 1,490,484.92-2,056,876.98-811,426.28

Finding the Fourth Proportional to 1,490,484.92, 2,056,876.98 and 811,426.28

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Solution

The fourth proportional to 1,490,484.92, 2,056,876.98 and 811,426.28 is: 1,119,772.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,484.92 : 2,056,876.98 = 811,426.28 : x
  2. Step 2: Convert to fraction form
    1,490,484.92/2,056,876.98 = 811,426.28/x
  3. Step 3: Cross multiply
    1,490,484.92x = 2,056,876.98 × 811,426.28
  4. Step 4: Simplify right side
    1,490,484.92x = 1,669,004,036,299.03
  5. Step 5: Solve for x
    x = 1,669,004,036,299.03/1,490,484.92
  6. Step 6: Final answer
    x = 1,119,772.51

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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.