Home / 856,828.60-1,284,014.10-630,422.20

Finding the Fourth Proportional to 856,828.60, 1,284,014.10 and 630,422.20

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Solution

The fourth proportional to 856,828.60, 1,284,014.10 and 630,422.20 is: 944,729.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,828.60 : 1,284,014.10 = 630,422.20 : x
  2. Step 2: Convert to fraction form
    856,828.60/1,284,014.10 = 630,422.20/x
  3. Step 3: Cross multiply
    856,828.60x = 1,284,014.10 × 630,422.20
  4. Step 4: Simplify right side
    856,828.60x = 809,470,993,753.02
  5. Step 5: Solve for x
    x = 809,470,993,753.02/856,828.60
  6. Step 6: Final answer
    x = 944,729.20

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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.