Home / 860,251.50-1,290,533.18-354,531.24

Finding the Fourth Proportional to 860,251.50, 1,290,533.18 and 354,531.24

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Solution

The fourth proportional to 860,251.50, 1,290,533.18 and 354,531.24 is: 531,861.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,251.50 : 1,290,533.18 = 354,531.24 : x
  2. Step 2: Convert to fraction form
    860,251.50/1,290,533.18 = 354,531.24/x
  3. Step 3: Cross multiply
    860,251.50x = 1,290,533.18 × 354,531.24
  4. Step 4: Simplify right side
    860,251.50x = 457,534,326,793.89
  5. Step 5: Solve for x
    x = 457,534,326,793.89/860,251.50
  6. Step 6: Final answer
    x = 531,861.12

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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.