Home / 860,836.60-1,291,254.90-822,129.40

Finding the Fourth Proportional to 860,836.60, 1,291,254.90 and 822,129.40

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Solution

The fourth proportional to 860,836.60, 1,291,254.90 and 822,129.40 is: 1,233,194.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,836.60 : 1,291,254.90 = 822,129.40 : x
  2. Step 2: Convert to fraction form
    860,836.60/1,291,254.90 = 822,129.40/x
  3. Step 3: Cross multiply
    860,836.60x = 1,291,254.90 × 822,129.40
  4. Step 4: Simplify right side
    860,836.60x = 1,061,578,616,184.06
  5. Step 5: Solve for x
    x = 1,061,578,616,184.06/860,836.60
  6. Step 6: Final answer
    x = 1,233,194.10

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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.