Home / 1,020,431.80-1,530,647.70-957,446.20

Finding the Fourth Proportional to 1,020,431.80, 1,530,647.70 and 957,446.20

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Solution

The fourth proportional to 1,020,431.80, 1,530,647.70 and 957,446.20 is: 1,436,169.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,431.80 : 1,530,647.70 = 957,446.20 : x
  2. Step 2: Convert to fraction form
    1,020,431.80/1,530,647.70 = 957,446.20/x
  3. Step 3: Cross multiply
    1,020,431.80x = 1,530,647.70 × 957,446.20
  4. Step 4: Simplify right side
    1,020,431.80x = 1,465,512,823,903.74
  5. Step 5: Solve for x
    x = 1,465,512,823,903.74/1,020,431.80
  6. Step 6: Final answer
    x = 1,436,169.30

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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.