Home / 1,120,498.40-1,682,497.20-648,106.40

Finding the Fourth Proportional to 1,120,498.40, 1,682,497.20 and 648,106.40

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Solution

The fourth proportional to 1,120,498.40, 1,682,497.20 and 648,106.40 is: 973,171.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,498.40 : 1,682,497.20 = 648,106.40 : x
  2. Step 2: Convert to fraction form
    1,120,498.40/1,682,497.20 = 648,106.40/x
  3. Step 3: Cross multiply
    1,120,498.40x = 1,682,497.20 × 648,106.40
  4. Step 4: Simplify right side
    1,120,498.40x = 1,090,437,203,302.08
  5. Step 5: Solve for x
    x = 1,090,437,203,302.08/1,120,498.40
  6. Step 6: Final answer
    x = 973,171.58

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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.