Home / 2,688,649.89-4,033,761.81-866,978.19

Finding the Fourth Proportional to 2,688,649.89, 4,033,761.81 and 866,978.19

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Solution

The fourth proportional to 2,688,649.89, 4,033,761.81 and 866,978.19 is: 1,300,721.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688,649.89 : 4,033,761.81 = 866,978.19 : x
  2. Step 2: Convert to fraction form
    2,688,649.89/4,033,761.81 = 866,978.19/x
  3. Step 3: Cross multiply
    2,688,649.89x = 4,033,761.81 × 866,978.19
  4. Step 4: Simplify right side
    2,688,649.89x = 3,497,183,509,673.76
  5. Step 5: Solve for x
    x = 3,497,183,509,673.76/2,688,649.89
  6. Step 6: Final answer
    x = 1,300,721.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.