Home / 720,020.40-1,080,030.60-221,384.40

Finding the Fourth Proportional to 720,020.40, 1,080,030.60 and 221,384.40

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Solution

The fourth proportional to 720,020.40, 1,080,030.60 and 221,384.40 is: 332,076.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,020.40 : 1,080,030.60 = 221,384.40 : x
  2. Step 2: Convert to fraction form
    720,020.40/1,080,030.60 = 221,384.40/x
  3. Step 3: Cross multiply
    720,020.40x = 1,080,030.60 × 221,384.40
  4. Step 4: Simplify right side
    720,020.40x = 239,101,926,362.64
  5. Step 5: Solve for x
    x = 239,101,926,362.64/720,020.40
  6. Step 6: Final answer
    x = 332,076.60

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Similar ratio
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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.