Home / 1,440,020.40-2,160,030.60-810,164.40

Finding the Fourth Proportional to 1,440,020.40, 2,160,030.60 and 810,164.40

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Solution

The fourth proportional to 1,440,020.40, 2,160,030.60 and 810,164.40 is: 1,215,246.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,020.40 : 2,160,030.60 = 810,164.40 : x
  2. Step 2: Convert to fraction form
    1,440,020.40/2,160,030.60 = 810,164.40/x
  3. Step 3: Cross multiply
    1,440,020.40x = 2,160,030.60 × 810,164.40
  4. Step 4: Simplify right side
    1,440,020.40x = 1,749,979,895,030.64
  5. Step 5: Solve for x
    x = 1,749,979,895,030.64/1,440,020.40
  6. Step 6: Final answer
    x = 1,215,246.60

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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.