Home / 860,332.32-1,290,495.60-220,635.36

Finding the Fourth Proportional to 860,332.32, 1,290,495.60 and 220,635.36

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Solution

The fourth proportional to 860,332.32, 1,290,495.60 and 220,635.36 is: 330,952.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,332.32 : 1,290,495.60 = 220,635.36 : x
  2. Step 2: Convert to fraction form
    860,332.32/1,290,495.60 = 220,635.36/x
  3. Step 3: Cross multiply
    860,332.32x = 1,290,495.60 × 220,635.36
  4. Step 4: Simplify right side
    860,332.32x = 284,728,961,284.42
  5. Step 5: Solve for x
    x = 284,728,961,284.42/860,332.32
  6. Step 6: Final answer
    x = 330,952.30

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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.