Home / 1,165,074.32-1,608,298.08-783,322.40

Finding the Fourth Proportional to 1,165,074.32, 1,608,298.08 and 783,322.40

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Solution

The fourth proportional to 1,165,074.32, 1,608,298.08 and 783,322.40 is: 1,081,318.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165,074.32 : 1,608,298.08 = 783,322.40 : x
  2. Step 2: Convert to fraction form
    1,165,074.32/1,608,298.08 = 783,322.40/x
  3. Step 3: Cross multiply
    1,165,074.32x = 1,608,298.08 × 783,322.40
  4. Step 4: Simplify right side
    1,165,074.32x = 1,259,815,911,940.99
  5. Step 5: Solve for x
    x = 1,259,815,911,940.99/1,165,074.32
  6. Step 6: Final answer
    x = 1,081,318.07

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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.