Home / 1,022,790.78-1,411,420.71-557,626.80

Finding the Fourth Proportional to 1,022,790.78, 1,411,420.71 and 557,626.80

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Solution

The fourth proportional to 1,022,790.78, 1,411,420.71 and 557,626.80 is: 769,508.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022,790.78 : 1,411,420.71 = 557,626.80 : x
  2. Step 2: Convert to fraction form
    1,022,790.78/1,411,420.71 = 557,626.80/x
  3. Step 3: Cross multiply
    1,022,790.78x = 1,411,420.71 × 557,626.80
  4. Step 4: Simplify right side
    1,022,790.78x = 787,046,013,971.03
  5. Step 5: Solve for x
    x = 787,046,013,971.03/1,022,790.78
  6. Step 6: Final answer
    x = 769,508.32

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1.5x scale

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.