Home / 860,026.50-1,289,988.72-260,992.62

Finding the Fourth Proportional to 860,026.50, 1,289,988.72 and 260,992.62

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Solution

The fourth proportional to 860,026.50, 1,289,988.72 and 260,992.62 is: 391,473.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,026.50 : 1,289,988.72 = 260,992.62 : x
  2. Step 2: Convert to fraction form
    860,026.50/1,289,988.72 = 260,992.62/x
  3. Step 3: Cross multiply
    860,026.50x = 1,289,988.72 × 260,992.62
  4. Step 4: Simplify right side
    860,026.50x = 336,677,535,803.25
  5. Step 5: Solve for x
    x = 336,677,535,803.25/860,026.50
  6. Step 6: Final answer
    x = 391,473.44

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1.5x scale

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.