Home / 1,219,684.20-1,683,162.54-675,855.20

Finding the Fourth Proportional to 1,219,684.20, 1,683,162.54 and 675,855.20

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Solution

The fourth proportional to 1,219,684.20, 1,683,162.54 and 675,855.20 is: 932,679.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,684.20 : 1,683,162.54 = 675,855.20 : x
  2. Step 2: Convert to fraction form
    1,219,684.20/1,683,162.54 = 675,855.20/x
  3. Step 3: Cross multiply
    1,219,684.20x = 1,683,162.54 × 675,855.20
  4. Step 4: Simplify right side
    1,219,684.20x = 1,137,574,159,312.11
  5. Step 5: Solve for x
    x = 1,137,574,159,312.11/1,219,684.20
  6. Step 6: Final answer
    x = 932,679.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.