Home / 1,242,005.70-1,860,712.20-707,940.30

Finding the Fourth Proportional to 1,242,005.70, 1,860,712.20 and 707,940.30

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Solution

The fourth proportional to 1,242,005.70, 1,860,712.20 and 707,940.30 is: 1,060,601.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,005.70 : 1,860,712.20 = 707,940.30 : x
  2. Step 2: Convert to fraction form
    1,242,005.70/1,860,712.20 = 707,940.30/x
  3. Step 3: Cross multiply
    1,242,005.70x = 1,860,712.20 × 707,940.30
  4. Step 4: Simplify right side
    1,242,005.70x = 1,317,273,153,081.66
  5. Step 5: Solve for x
    x = 1,317,273,153,081.66/1,242,005.70
  6. Step 6: Final answer
    x = 1,060,601.54

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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.