Home / 911,899.70-1,258,574.65-617,415.83

Finding the Fourth Proportional to 911,899.70, 1,258,574.65 and 617,415.83

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Solution

The fourth proportional to 911,899.70, 1,258,574.65 and 617,415.83 is: 852,137.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,899.70 : 1,258,574.65 = 617,415.83 : x
  2. Step 2: Convert to fraction form
    911,899.70/1,258,574.65 = 617,415.83/x
  3. Step 3: Cross multiply
    911,899.70x = 1,258,574.65 × 617,415.83
  4. Step 4: Simplify right side
    911,899.70x = 777,063,904,310.30
  5. Step 5: Solve for x
    x = 777,063,904,310.30/911,899.70
  6. Step 6: Final answer
    x = 852,137.48

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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.