Home / 1,278,467.40-1,920,552.30-1,068,515.40

Finding the Fourth Proportional to 1,278,467.40, 1,920,552.30 and 1,068,515.40

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Solution

The fourth proportional to 1,278,467.40, 1,920,552.30 and 1,068,515.40 is: 1,605,156.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,467.40 : 1,920,552.30 = 1,068,515.40 : x
  2. Step 2: Convert to fraction form
    1,278,467.40/1,920,552.30 = 1,068,515.40/x
  3. Step 3: Cross multiply
    1,278,467.40x = 1,920,552.30 × 1,068,515.40
  4. Step 4: Simplify right side
    1,278,467.40x = 2,052,139,709,055.42
  5. Step 5: Solve for x
    x = 2,052,139,709,055.42/1,278,467.40
  6. Step 6: Final answer
    x = 1,605,156.07

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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.