Home / 839,120.76-1,158,424.20-652,438.44

Finding the Fourth Proportional to 839,120.76, 1,158,424.20 and 652,438.44

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Solution

The fourth proportional to 839,120.76, 1,158,424.20 and 652,438.44 is: 900,705.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,120.76 : 1,158,424.20 = 652,438.44 : x
  2. Step 2: Convert to fraction form
    839,120.76/1,158,424.20 = 652,438.44/x
  3. Step 3: Cross multiply
    839,120.76x = 1,158,424.20 × 652,438.44
  4. Step 4: Simplify right side
    839,120.76x = 755,800,477,906.25
  5. Step 5: Solve for x
    x = 755,800,477,906.25/839,120.76
  6. Step 6: Final answer
    x = 900,705.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.