Home / 1,211,790.80-1,817,686.20-370,233.20

Finding the Fourth Proportional to 1,211,790.80, 1,817,686.20 and 370,233.20

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Solution

The fourth proportional to 1,211,790.80, 1,817,686.20 and 370,233.20 is: 555,349.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,790.80 : 1,817,686.20 = 370,233.20 : x
  2. Step 2: Convert to fraction form
    1,211,790.80/1,817,686.20 = 370,233.20/x
  3. Step 3: Cross multiply
    1,211,790.80x = 1,817,686.20 × 370,233.20
  4. Step 4: Simplify right side
    1,211,790.80x = 672,967,778,421.84
  5. Step 5: Solve for x
    x = 672,967,778,421.84/1,211,790.80
  6. Step 6: Final answer
    x = 555,349.80

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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.