Home / 549,143.39-757,908.55-376,919.87

Finding the Fourth Proportional to 549,143.39, 757,908.55 and 376,919.87

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Solution

The fourth proportional to 549,143.39, 757,908.55 and 376,919.87 is: 520,211.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,143.39 : 757,908.55 = 376,919.87 : x
  2. Step 2: Convert to fraction form
    549,143.39/757,908.55 = 376,919.87/x
  3. Step 3: Cross multiply
    549,143.39x = 757,908.55 × 376,919.87
  4. Step 4: Simplify right side
    549,143.39x = 285,670,787,406.05
  5. Step 5: Solve for x
    x = 285,670,787,406.05/549,143.39
  6. Step 6: Final answer
    x = 520,211.65

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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.