Home / 890,390.56-1,230,368.44-648,252.86

Finding the Fourth Proportional to 890,390.56, 1,230,368.44 and 648,252.86

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Solution

The fourth proportional to 890,390.56, 1,230,368.44 and 648,252.86 is: 895,775.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,390.56 : 1,230,368.44 = 648,252.86 : x
  2. Step 2: Convert to fraction form
    890,390.56/1,230,368.44 = 648,252.86/x
  3. Step 3: Cross multiply
    890,390.56x = 1,230,368.44 × 648,252.86
  4. Step 4: Simplify right side
    890,390.56x = 797,589,860,083.74
  5. Step 5: Solve for x
    x = 797,589,860,083.74/890,390.56
  6. Step 6: Final answer
    x = 895,775.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.