Home / 993,611.20-1,490,416.80-394,715.20

Finding the Fourth Proportional to 993,611.20, 1,490,416.80 and 394,715.20

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Solution

The fourth proportional to 993,611.20, 1,490,416.80 and 394,715.20 is: 592,072.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,611.20 : 1,490,416.80 = 394,715.20 : x
  2. Step 2: Convert to fraction form
    993,611.20/1,490,416.80 = 394,715.20/x
  3. Step 3: Cross multiply
    993,611.20x = 1,490,416.80 × 394,715.20
  4. Step 4: Simplify right side
    993,611.20x = 588,290,165,295.36
  5. Step 5: Solve for x
    x = 588,290,165,295.36/993,611.20
  6. Step 6: Final answer
    x = 592,072.80

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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.