Home / 1,287,166.50-1,776,374.64-743,325.12

Finding the Fourth Proportional to 1,287,166.50, 1,776,374.64 and 743,325.12

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Solution

The fourth proportional to 1,287,166.50, 1,776,374.64 and 743,325.12 is: 1,025,837.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,166.50 : 1,776,374.64 = 743,325.12 : x
  2. Step 2: Convert to fraction form
    1,287,166.50/1,776,374.64 = 743,325.12/x
  3. Step 3: Cross multiply
    1,287,166.50x = 1,776,374.64 × 743,325.12
  4. Step 4: Simplify right side
    1,287,166.50x = 1,320,423,892,442.96
  5. Step 5: Solve for x
    x = 1,320,423,892,442.96/1,287,166.50
  6. Step 6: Final answer
    x = 1,025,837.68

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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.