Home / 1,778,680.64-2,667,045.60-1,217,856.32

Finding the Fourth Proportional to 1,778,680.64, 2,667,045.60 and 1,217,856.32

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Solution

The fourth proportional to 1,778,680.64, 2,667,045.60 and 1,217,856.32 is: 1,826,116.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778,680.64 : 2,667,045.60 = 1,217,856.32 : x
  2. Step 2: Convert to fraction form
    1,778,680.64/2,667,045.60 = 1,217,856.32/x
  3. Step 3: Cross multiply
    1,778,680.64x = 2,667,045.60 × 1,217,856.32
  4. Step 4: Simplify right side
    1,778,680.64x = 3,248,078,339,688.19
  5. Step 5: Solve for x
    x = 3,248,078,339,688.19/1,778,680.64
  6. Step 6: Final answer
    x = 1,826,116.65

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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.