Home / 911,736.95-1,366,518.42-424,765.86

Finding the Fourth Proportional to 911,736.95, 1,366,518.42 and 424,765.86

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Solution

The fourth proportional to 911,736.95, 1,366,518.42 and 424,765.86 is: 636,642.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,736.95 : 1,366,518.42 = 424,765.86 : x
  2. Step 2: Convert to fraction form
    911,736.95/1,366,518.42 = 424,765.86/x
  3. Step 3: Cross multiply
    911,736.95x = 1,366,518.42 × 424,765.86
  4. Step 4: Simplify right side
    911,736.95x = 580,450,371,877.14
  5. Step 5: Solve for x
    x = 580,450,371,877.14/911,736.95
  6. Step 6: Final answer
    x = 636,642.37

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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.