Home / 1,206,209.70-1,809,314.55-319,745.70

Finding the Fourth Proportional to 1,206,209.70, 1,809,314.55 and 319,745.70

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Solution

The fourth proportional to 1,206,209.70, 1,809,314.55 and 319,745.70 is: 479,618.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,209.70 : 1,809,314.55 = 319,745.70 : x
  2. Step 2: Convert to fraction form
    1,206,209.70/1,809,314.55 = 319,745.70/x
  3. Step 3: Cross multiply
    1,206,209.70x = 1,809,314.55 × 319,745.70
  4. Step 4: Simplify right side
    1,206,209.70x = 578,520,547,309.94
  5. Step 5: Solve for x
    x = 578,520,547,309.94/1,206,209.70
  6. Step 6: Final answer
    x = 479,618.55

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1.5x scale

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.