Home / 887,106.88-1,224,219.20-505,135.20

Finding the Fourth Proportional to 887,106.88, 1,224,219.20 and 505,135.20

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Solution

The fourth proportional to 887,106.88, 1,224,219.20 and 505,135.20 is: 697,093.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,106.88 : 1,224,219.20 = 505,135.20 : x
  2. Step 2: Convert to fraction form
    887,106.88/1,224,219.20 = 505,135.20/x
  3. Step 3: Cross multiply
    887,106.88x = 1,224,219.20 × 505,135.20
  4. Step 4: Simplify right side
    887,106.88x = 618,396,210,435.84
  5. Step 5: Solve for x
    x = 618,396,210,435.84/887,106.88
  6. Step 6: Final answer
    x = 697,093.24

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Double scale
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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.