Home / 1,189,020.04-1,783,715.94-390,119.88

Finding the Fourth Proportional to 1,189,020.04, 1,783,715.94 and 390,119.88

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Solution

The fourth proportional to 1,189,020.04, 1,783,715.94 and 390,119.88 is: 585,240.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,020.04 : 1,783,715.94 = 390,119.88 : x
  2. Step 2: Convert to fraction form
    1,189,020.04/1,783,715.94 = 390,119.88/x
  3. Step 3: Cross multiply
    1,189,020.04x = 1,783,715.94 × 390,119.88
  4. Step 4: Simplify right side
    1,189,020.04x = 695,863,048,466.89
  5. Step 5: Solve for x
    x = 695,863,048,466.89/1,189,020.04
  6. Step 6: Final answer
    x = 585,240.81

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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.