Home / 1,275,678.90-1,913,520.92-1,197,734.22

Finding the Fourth Proportional to 1,275,678.90, 1,913,520.92 and 1,197,734.22

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Solution

The fourth proportional to 1,275,678.90, 1,913,520.92 and 1,197,734.22 is: 1,796,603.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,678.90 : 1,913,520.92 = 1,197,734.22 : x
  2. Step 2: Convert to fraction form
    1,275,678.90/1,913,520.92 = 1,197,734.22/x
  3. Step 3: Cross multiply
    1,275,678.90x = 1,913,520.92 × 1,197,734.22
  4. Step 4: Simplify right side
    1,275,678.90x = 2,291,889,480,581.21
  5. Step 5: Solve for x
    x = 2,291,889,480,581.21/1,275,678.90
  6. Step 6: Final answer
    x = 1,796,603.74

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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.