Home / 1,020,104.20-1,530,241.80-310,138.39

Finding the Fourth Proportional to 1,020,104.20, 1,530,241.80 and 310,138.39

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Solution

The fourth proportional to 1,020,104.20, 1,530,241.80 and 310,138.39 is: 465,233.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,104.20 : 1,530,241.80 = 310,138.39 : x
  2. Step 2: Convert to fraction form
    1,020,104.20/1,530,241.80 = 310,138.39/x
  3. Step 3: Cross multiply
    1,020,104.20x = 1,530,241.80 × 310,138.39
  4. Step 4: Simplify right side
    1,020,104.20x = 474,586,728,162.70
  5. Step 5: Solve for x
    x = 474,586,728,162.70/1,020,104.20
  6. Step 6: Final answer
    x = 465,233.58

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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.