Home / 1,074,409.20-1,609,669.80-512,204.40

Finding the Fourth Proportional to 1,074,409.20, 1,609,669.80 and 512,204.40

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Solution

The fourth proportional to 1,074,409.20, 1,609,669.80 and 512,204.40 is: 767,379.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,074,409.20 : 1,609,669.80 = 512,204.40 : x
  2. Step 2: Convert to fraction form
    1,074,409.20/1,609,669.80 = 512,204.40/x
  3. Step 3: Cross multiply
    1,074,409.20x = 1,609,669.80 × 512,204.40
  4. Step 4: Simplify right side
    1,074,409.20x = 824,479,954,107.12
  5. Step 5: Solve for x
    x = 824,479,954,107.12/1,074,409.20
  6. Step 6: Final answer
    x = 767,379.83

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Double scale
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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.