Home / 856,837.60-1,284,027.60-630,431.20

Finding the Fourth Proportional to 856,837.60, 1,284,027.60 and 630,431.20

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Solution

The fourth proportional to 856,837.60, 1,284,027.60 and 630,431.20 is: 944,742.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,837.60 : 1,284,027.60 = 630,431.20 : x
  2. Step 2: Convert to fraction form
    856,837.60/1,284,027.60 = 630,431.20/x
  3. Step 3: Cross multiply
    856,837.60x = 1,284,027.60 × 630,431.20
  4. Step 4: Simplify right side
    856,837.60x = 809,491,060,701.12
  5. Step 5: Solve for x
    x = 809,491,060,701.12/856,837.60
  6. Step 6: Final answer
    x = 944,742.69

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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.