Home / 2,718,938.40-4,078,075.22-1,121,293.89

Finding the Fourth Proportional to 2,718,938.40, 4,078,075.22 and 1,121,293.89

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Solution

The fourth proportional to 2,718,938.40, 4,078,075.22 and 1,121,293.89 is: 1,681,803.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,718,938.40 : 4,078,075.22 = 1,121,293.89 : x
  2. Step 2: Convert to fraction form
    2,718,938.40/4,078,075.22 = 1,121,293.89/x
  3. Step 3: Cross multiply
    2,718,938.40x = 4,078,075.22 × 1,121,293.89
  4. Step 4: Simplify right side
    2,718,938.40x = 4,572,720,822,591.15
  5. Step 5: Solve for x
    x = 4,572,720,822,591.15/2,718,938.40
  6. Step 6: Final answer
    x = 1,681,803.76

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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.