Home / 887,190.80-1,224,321.98-505,217.68

Finding the Fourth Proportional to 887,190.80, 1,224,321.98 and 505,217.68

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Solution

The fourth proportional to 887,190.80, 1,224,321.98 and 505,217.68 is: 697,199.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,190.80 : 1,224,321.98 = 505,217.68 : x
  2. Step 2: Convert to fraction form
    887,190.80/1,224,321.98 = 505,217.68/x
  3. Step 3: Cross multiply
    887,190.80x = 1,224,321.98 × 505,217.68
  4. Step 4: Simplify right side
    887,190.80x = 618,549,110,308.61
  5. Step 5: Solve for x
    x = 618,549,110,308.61/887,190.80
  6. Step 6: Final answer
    x = 697,199.64

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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.