Home / 807,421.95-1,211,320.52-274,947.59

Finding the Fourth Proportional to 807,421.95, 1,211,320.52 and 274,947.59

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Solution

The fourth proportional to 807,421.95, 1,211,320.52 and 274,947.59 is: 412,485.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,421.95 : 1,211,320.52 = 274,947.59 : x
  2. Step 2: Convert to fraction form
    807,421.95/1,211,320.52 = 274,947.59/x
  3. Step 3: Cross multiply
    807,421.95x = 1,211,320.52 × 274,947.59
  4. Step 4: Simplify right side
    807,421.95x = 333,049,658,515.91
  5. Step 5: Solve for x
    x = 333,049,658,515.91/807,421.95
  6. Step 6: Final answer
    x = 412,485.27

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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.