Home / 1,388,617.19-1,915,520.00-807,774.95

Finding the Fourth Proportional to 1,388,617.19, 1,915,520.00 and 807,774.95

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Solution

The fourth proportional to 1,388,617.19, 1,915,520.00 and 807,774.95 is: 1,114,280.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,617.19 : 1,915,520.00 = 807,774.95 : x
  2. Step 2: Convert to fraction form
    1,388,617.19/1,915,520.00 = 807,774.95/x
  3. Step 3: Cross multiply
    1,388,617.19x = 1,915,520.00 × 807,774.95
  4. Step 4: Simplify right side
    1,388,617.19x = 1,547,309,068,185.13
  5. Step 5: Solve for x
    x = 1,547,309,068,185.13/1,388,617.19
  6. Step 6: Final answer
    x = 1,114,280.51

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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.