Home / 1,490,536.78-2,056,940.71-811,473.28

Finding the Fourth Proportional to 1,490,536.78, 2,056,940.71 and 811,473.28

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Solution

The fourth proportional to 1,490,536.78, 2,056,940.71 and 811,473.28 is: 1,119,833.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,536.78 : 2,056,940.71 = 811,473.28 : x
  2. Step 2: Convert to fraction form
    1,490,536.78/2,056,940.71 = 811,473.28/x
  3. Step 3: Cross multiply
    1,490,536.78x = 2,056,940.71 × 811,473.28
  4. Step 4: Simplify right side
    1,490,536.78x = 1,669,152,424,709.23
  5. Step 5: Solve for x
    x = 1,669,152,424,709.23/1,490,536.78
  6. Step 6: Final answer
    x = 1,119,833.10

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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.