Home / 856,848.60-1,285,272.90-778,116.60

Finding the Fourth Proportional to 856,848.60, 1,285,272.90 and 778,116.60

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Solution

The fourth proportional to 856,848.60, 1,285,272.90 and 778,116.60 is: 1,167,174.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,848.60 : 1,285,272.90 = 778,116.60 : x
  2. Step 2: Convert to fraction form
    856,848.60/1,285,272.90 = 778,116.60/x
  3. Step 3: Cross multiply
    856,848.60x = 1,285,272.90 × 778,116.60
  4. Step 4: Simplify right side
    856,848.60x = 1,000,092,179,020.14
  5. Step 5: Solve for x
    x = 1,000,092,179,020.14/856,848.60
  6. Step 6: Final answer
    x = 1,167,174.90

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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.