Home / 872,837.40-1,205,078.22-562,878.60

Finding the Fourth Proportional to 872,837.40, 1,205,078.22 and 562,878.60

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Solution

The fourth proportional to 872,837.40, 1,205,078.22 and 562,878.60 is: 777,135.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,837.40 : 1,205,078.22 = 562,878.60 : x
  2. Step 2: Convert to fraction form
    872,837.40/1,205,078.22 = 562,878.60/x
  3. Step 3: Cross multiply
    872,837.40x = 1,205,078.22 × 562,878.60
  4. Step 4: Simplify right side
    872,837.40x = 678,312,741,364.09
  5. Step 5: Solve for x
    x = 678,312,741,364.09/872,837.40
  6. Step 6: Final answer
    x = 777,135.28

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1.5x scale

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.