Home / 957,939.42-1,436,379.12-380,978.40

Finding the Fourth Proportional to 957,939.42, 1,436,379.12 and 380,978.40

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Solution

The fourth proportional to 957,939.42, 1,436,379.12 and 380,978.40 is: 571,256.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,939.42 : 1,436,379.12 = 380,978.40 : x
  2. Step 2: Convert to fraction form
    957,939.42/1,436,379.12 = 380,978.40/x
  3. Step 3: Cross multiply
    957,939.42x = 1,436,379.12 × 380,978.40
  4. Step 4: Simplify right side
    957,939.42x = 547,229,418,931.01
  5. Step 5: Solve for x
    x = 547,229,418,931.01/957,939.42
  6. Step 6: Final answer
    x = 571,256.81

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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.