Home / 854,036.10-1,281,452.67-380,672.10

Finding the Fourth Proportional to 854,036.10, 1,281,452.67 and 380,672.10

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Solution

The fourth proportional to 854,036.10, 1,281,452.67 and 380,672.10 is: 571,185.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,036.10 : 1,281,452.67 = 380,672.10 : x
  2. Step 2: Convert to fraction form
    854,036.10/1,281,452.67 = 380,672.10/x
  3. Step 3: Cross multiply
    854,036.10x = 1,281,452.67 × 380,672.10
  4. Step 4: Simplify right side
    854,036.10x = 487,813,278,939.51
  5. Step 5: Solve for x
    x = 487,813,278,939.51/854,036.10
  6. Step 6: Final answer
    x = 571,185.78

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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.