Home / 1,289,418.17-1,779,405.59-806,266.13

Finding the Fourth Proportional to 1,289,418.17, 1,779,405.59 and 806,266.13

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Solution

The fourth proportional to 1,289,418.17, 1,779,405.59 and 806,266.13 is: 1,112,652.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,418.17 : 1,779,405.59 = 806,266.13 : x
  2. Step 2: Convert to fraction form
    1,289,418.17/1,779,405.59 = 806,266.13/x
  3. Step 3: Cross multiply
    1,289,418.17x = 1,779,405.59 × 806,266.13
  4. Step 4: Simplify right side
    1,289,418.17x = 1,434,674,445,821.31
  5. Step 5: Solve for x
    x = 1,434,674,445,821.31/1,289,418.17
  6. Step 6: Final answer
    x = 1,112,652.58

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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.