Home / 860,142.60-1,290,473.10-611,310.60

Finding the Fourth Proportional to 860,142.60, 1,290,473.10 and 611,310.60

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Solution

The fourth proportional to 860,142.60, 1,290,473.10 and 611,310.60 is: 917,150.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,142.60 : 1,290,473.10 = 611,310.60 : x
  2. Step 2: Convert to fraction form
    860,142.60/1,290,473.10 = 611,310.60/x
  3. Step 3: Cross multiply
    860,142.60x = 1,290,473.10 × 611,310.60
  4. Step 4: Simplify right side
    860,142.60x = 788,879,885,044.86
  5. Step 5: Solve for x
    x = 788,879,885,044.86/860,142.60
  6. Step 6: Final answer
    x = 917,150.12

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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.