Home / 1,090,812.80-1,636,219.20-342,858.80

Finding the Fourth Proportional to 1,090,812.80, 1,636,219.20 and 342,858.80

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Solution

The fourth proportional to 1,090,812.80, 1,636,219.20 and 342,858.80 is: 514,288.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,812.80 : 1,636,219.20 = 342,858.80 : x
  2. Step 2: Convert to fraction form
    1,090,812.80/1,636,219.20 = 342,858.80/x
  3. Step 3: Cross multiply
    1,090,812.80x = 1,636,219.20 × 342,858.80
  4. Step 4: Simplify right side
    1,090,812.80x = 560,992,151,448.96
  5. Step 5: Solve for x
    x = 560,992,151,448.96/1,090,812.80
  6. Step 6: Final answer
    x = 514,288.20

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Double scale
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Similar ratio
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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.