Home / 869,620.40-1,304,430.60-720,029.60

Finding the Fourth Proportional to 869,620.40, 1,304,430.60 and 720,029.60

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Solution

The fourth proportional to 869,620.40, 1,304,430.60 and 720,029.60 is: 1,080,044.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,620.40 : 1,304,430.60 = 720,029.60 : x
  2. Step 2: Convert to fraction form
    869,620.40/1,304,430.60 = 720,029.60/x
  3. Step 3: Cross multiply
    869,620.40x = 1,304,430.60 × 720,029.60
  4. Step 4: Simplify right side
    869,620.40x = 939,228,643,145.76
  5. Step 5: Solve for x
    x = 939,228,643,145.76/869,620.40
  6. Step 6: Final answer
    x = 1,080,044.40

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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.