Home / 837,431.71-1,155,652.55-455,464.87

Finding the Fourth Proportional to 837,431.71, 1,155,652.55 and 455,464.87

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Solution

The fourth proportional to 837,431.71, 1,155,652.55 and 455,464.87 is: 628,539.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,431.71 : 1,155,652.55 = 455,464.87 : x
  2. Step 2: Convert to fraction form
    837,431.71/1,155,652.55 = 455,464.87/x
  3. Step 3: Cross multiply
    837,431.71x = 1,155,652.55 × 455,464.87
  4. Step 4: Simplify right side
    837,431.71x = 526,359,134,992.46
  5. Step 5: Solve for x
    x = 526,359,134,992.46/837,431.71
  6. Step 6: Final answer
    x = 628,539.77

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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.