Home / 642,779.28-964,234.58-222,000.48

Finding the Fourth Proportional to 642,779.28, 964,234.58 and 222,000.48

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Solution

The fourth proportional to 642,779.28, 964,234.58 and 222,000.48 is: 333,023.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,779.28 : 964,234.58 = 222,000.48 : x
  2. Step 2: Convert to fraction form
    642,779.28/964,234.58 = 222,000.48/x
  3. Step 3: Cross multiply
    642,779.28x = 964,234.58 × 222,000.48
  4. Step 4: Simplify right side
    642,779.28x = 214,060,538,482.60
  5. Step 5: Solve for x
    x = 214,060,538,482.60/642,779.28
  6. Step 6: Final answer
    x = 333,023.40

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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.