Home / 771,231.60-1,158,229.80-561,106.80

Finding the Fourth Proportional to 771,231.60, 1,158,229.80 and 561,106.80

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Solution

The fourth proportional to 771,231.60, 1,158,229.80 and 561,106.80 is: 842,665.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,231.60 : 1,158,229.80 = 561,106.80 : x
  2. Step 2: Convert to fraction form
    771,231.60/1,158,229.80 = 561,106.80/x
  3. Step 3: Cross multiply
    771,231.60x = 1,158,229.80 × 561,106.80
  4. Step 4: Simplify right side
    771,231.60x = 649,890,616,742.64
  5. Step 5: Solve for x
    x = 649,890,616,742.64/771,231.60
  6. Step 6: Final answer
    x = 842,665.96

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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.