Home / 1,388,543.57-1,915,418.99-807,701.27

Finding the Fourth Proportional to 1,388,543.57, 1,915,418.99 and 807,701.27

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Solution

The fourth proportional to 1,388,543.57, 1,915,418.99 and 807,701.27 is: 1,114,179.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,543.57 : 1,915,418.99 = 807,701.27 : x
  2. Step 2: Convert to fraction form
    1,388,543.57/1,915,418.99 = 807,701.27/x
  3. Step 3: Cross multiply
    1,388,543.57x = 1,915,418.99 × 807,701.27
  4. Step 4: Simplify right side
    1,388,543.57x = 1,547,086,343,247.28
  5. Step 5: Solve for x
    x = 1,547,086,343,247.28/1,388,543.57
  6. Step 6: Final answer
    x = 1,114,179.19

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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.