Home / 739,120.12-1,019,619.08-477,385.42

Finding the Fourth Proportional to 739,120.12, 1,019,619.08 and 477,385.42

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Solution

The fourth proportional to 739,120.12, 1,019,619.08 and 477,385.42 is: 658,555.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,120.12 : 1,019,619.08 = 477,385.42 : x
  2. Step 2: Convert to fraction form
    739,120.12/1,019,619.08 = 477,385.42/x
  3. Step 3: Cross multiply
    739,120.12x = 1,019,619.08 × 477,385.42
  4. Step 4: Simplify right side
    739,120.12x = 486,751,282,745.81
  5. Step 5: Solve for x
    x = 486,751,282,745.81/739,120.12
  6. Step 6: Final answer
    x = 658,555.04

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Double scale
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1.5x scale

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.