Home / 862,368.40-1,293,741.96-255,109.20

Finding the Fourth Proportional to 862,368.40, 1,293,741.96 and 255,109.20

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Solution

The fourth proportional to 862,368.40, 1,293,741.96 and 255,109.20 is: 382,719.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,368.40 : 1,293,741.96 = 255,109.20 : x
  2. Step 2: Convert to fraction form
    862,368.40/1,293,741.96 = 255,109.20/x
  3. Step 3: Cross multiply
    862,368.40x = 1,293,741.96 × 255,109.20
  4. Step 4: Simplify right side
    862,368.40x = 330,045,476,422.03
  5. Step 5: Solve for x
    x = 330,045,476,422.03/862,368.40
  6. Step 6: Final answer
    x = 382,719.82

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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.