Home / 959,158.20-1,439,903.70-485,599.80

Finding the Fourth Proportional to 959,158.20, 1,439,903.70 and 485,599.80

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Solution

The fourth proportional to 959,158.20, 1,439,903.70 and 485,599.80 is: 728,990.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,158.20 : 1,439,903.70 = 485,599.80 : x
  2. Step 2: Convert to fraction form
    959,158.20/1,439,903.70 = 485,599.80/x
  3. Step 3: Cross multiply
    959,158.20x = 1,439,903.70 × 485,599.80
  4. Step 4: Simplify right side
    959,158.20x = 699,216,948,739.26
  5. Step 5: Solve for x
    x = 699,216,948,739.26/959,158.20
  6. Step 6: Final answer
    x = 728,990.22

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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.