Home / 860,830.10-1,291,245.15-822,122.90

Finding the Fourth Proportional to 860,830.10, 1,291,245.15 and 822,122.90

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Solution

The fourth proportional to 860,830.10, 1,291,245.15 and 822,122.90 is: 1,233,184.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,830.10 : 1,291,245.15 = 822,122.90 : x
  2. Step 2: Convert to fraction form
    860,830.10/1,291,245.15 = 822,122.90/x
  3. Step 3: Cross multiply
    860,830.10x = 1,291,245.15 × 822,122.90
  4. Step 4: Simplify right side
    860,830.10x = 1,061,562,207,328.94
  5. Step 5: Solve for x
    x = 1,061,562,207,328.94/860,830.10
  6. Step 6: Final answer
    x = 1,233,184.35

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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.