Home / 1,297,436.40-1,790,466.12-724,497.48

Finding the Fourth Proportional to 1,297,436.40, 1,790,466.12 and 724,497.48

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Solution

The fourth proportional to 1,297,436.40, 1,790,466.12 and 724,497.48 is: 999,808.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,436.40 : 1,790,466.12 = 724,497.48 : x
  2. Step 2: Convert to fraction form
    1,297,436.40/1,790,466.12 = 724,497.48/x
  3. Step 3: Cross multiply
    1,297,436.40x = 1,790,466.12 × 724,497.48
  4. Step 4: Simplify right side
    1,297,436.40x = 1,297,188,191,965.38
  5. Step 5: Solve for x
    x = 1,297,188,191,965.38/1,297,436.40
  6. Step 6: Final answer
    x = 999,808.69

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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.