Home / 1,679,466.54-2,317,663.86-915,520.70

Finding the Fourth Proportional to 1,679,466.54, 2,317,663.86 and 915,520.70

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Solution

The fourth proportional to 1,679,466.54, 2,317,663.86 and 915,520.70 is: 1,263,418.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679,466.54 : 2,317,663.86 = 915,520.70 : x
  2. Step 2: Convert to fraction form
    1,679,466.54/2,317,663.86 = 915,520.70/x
  3. Step 3: Cross multiply
    1,679,466.54x = 2,317,663.86 × 915,520.70
  4. Step 4: Simplify right side
    1,679,466.54x = 2,121,869,239,471.90
  5. Step 5: Solve for x
    x = 2,121,869,239,471.90/1,679,466.54
  6. Step 6: Final answer
    x = 1,263,418.58

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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.