Home / 911,386.69-1,366,146.91-379,216.69

Finding the Fourth Proportional to 911,386.69, 1,366,146.91 and 379,216.69

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Solution

The fourth proportional to 911,386.69, 1,366,146.91 and 379,216.69 is: 568,436.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,386.69 : 1,366,146.91 = 379,216.69 : x
  2. Step 2: Convert to fraction form
    911,386.69/1,366,146.91 = 379,216.69/x
  3. Step 3: Cross multiply
    911,386.69x = 1,366,146.91 × 379,216.69
  4. Step 4: Simplify right side
    911,386.69x = 518,065,706,322.58
  5. Step 5: Solve for x
    x = 518,065,706,322.58/911,386.69
  6. Step 6: Final answer
    x = 568,436.77

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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.