Home / 860,333.32-1,290,497.10-220,636.36

Finding the Fourth Proportional to 860,333.32, 1,290,497.10 and 220,636.36

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Solution

The fourth proportional to 860,333.32, 1,290,497.10 and 220,636.36 is: 330,953.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,333.32 : 1,290,497.10 = 220,636.36 : x
  2. Step 2: Convert to fraction form
    860,333.32/1,290,497.10 = 220,636.36/x
  3. Step 3: Cross multiply
    860,333.32x = 1,290,497.10 × 220,636.36
  4. Step 4: Simplify right side
    860,333.32x = 284,730,582,734.56
  5. Step 5: Solve for x
    x = 284,730,582,734.56/860,333.32
  6. Step 6: Final answer
    x = 330,953.80

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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.