Home / 1,242,007.20-1,860,714.45-707,941.80

Finding the Fourth Proportional to 1,242,007.20, 1,860,714.45 and 707,941.80

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Solution

The fourth proportional to 1,242,007.20, 1,860,714.45 and 707,941.80 is: 1,060,603.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,007.20 : 1,860,714.45 = 707,941.80 : x
  2. Step 2: Convert to fraction form
    1,242,007.20/1,860,714.45 = 707,941.80/x
  3. Step 3: Cross multiply
    1,242,007.20x = 1,860,714.45 × 707,941.80
  4. Step 4: Simplify right side
    1,242,007.20x = 1,317,277,537,019.01
  5. Step 5: Solve for x
    x = 1,317,277,537,019.01/1,242,007.20
  6. Step 6: Final answer
    x = 1,060,603.78

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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.