Home / 856,848.30-1,285,272.45-719,990.70

Finding the Fourth Proportional to 856,848.30, 1,285,272.45 and 719,990.70

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Solution

The fourth proportional to 856,848.30, 1,285,272.45 and 719,990.70 is: 1,079,986.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,848.30 : 1,285,272.45 = 719,990.70 : x
  2. Step 2: Convert to fraction form
    856,848.30/1,285,272.45 = 719,990.70/x
  3. Step 3: Cross multiply
    856,848.30x = 1,285,272.45 × 719,990.70
  4. Step 4: Simplify right side
    856,848.30x = 925,384,210,966.22
  5. Step 5: Solve for x
    x = 925,384,210,966.22/856,848.30
  6. Step 6: Final answer
    x = 1,079,986.05

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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.