Home / 1,243,443.20-1,867,929.60-1,210,265.60

Finding the Fourth Proportional to 1,243,443.20, 1,867,929.60 and 1,210,265.60

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Solution

The fourth proportional to 1,243,443.20, 1,867,929.60 and 1,210,265.60 is: 1,818,089.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,443.20 : 1,867,929.60 = 1,210,265.60 : x
  2. Step 2: Convert to fraction form
    1,243,443.20/1,867,929.60 = 1,210,265.60/x
  3. Step 3: Cross multiply
    1,243,443.20x = 1,867,929.60 × 1,210,265.60
  4. Step 4: Simplify right side
    1,243,443.20x = 2,260,690,938,101.76
  5. Step 5: Solve for x
    x = 2,260,690,938,101.76/1,243,443.20
  6. Step 6: Final answer
    x = 1,818,089.43

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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.