Home / 862,155.90-1,293,236.28-301,190.40

Finding the Fourth Proportional to 862,155.90, 1,293,236.28 and 301,190.40

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Solution

The fourth proportional to 862,155.90, 1,293,236.28 and 301,190.40 is: 451,786.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,155.90 : 1,293,236.28 = 301,190.40 : x
  2. Step 2: Convert to fraction form
    862,155.90/1,293,236.28 = 301,190.40/x
  3. Step 3: Cross multiply
    862,155.90x = 1,293,236.28 × 301,190.40
  4. Step 4: Simplify right side
    862,155.90x = 389,510,352,467.71
  5. Step 5: Solve for x
    x = 389,510,352,467.71/862,155.90
  6. Step 6: Final answer
    x = 451,786.45

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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.