Home / 1,043,028.78-1,439,329.95-640,543.02

Finding the Fourth Proportional to 1,043,028.78, 1,439,329.95 and 640,543.02

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Solution

The fourth proportional to 1,043,028.78, 1,439,329.95 and 640,543.02 is: 883,918.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,043,028.78 : 1,439,329.95 = 640,543.02 : x
  2. Step 2: Convert to fraction form
    1,043,028.78/1,439,329.95 = 640,543.02/x
  3. Step 3: Cross multiply
    1,043,028.78x = 1,439,329.95 × 640,543.02
  4. Step 4: Simplify right side
    1,043,028.78x = 921,952,752,949.45
  5. Step 5: Solve for x
    x = 921,952,752,949.45/1,043,028.78
  6. Step 6: Final answer
    x = 883,918.81

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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.