Home / 887,376.87-1,224,644.16-505,403.55

Finding the Fourth Proportional to 887,376.87, 1,224,644.16 and 505,403.55

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Solution

The fourth proportional to 887,376.87, 1,224,644.16 and 505,403.55 is: 697,493.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,376.87 : 1,224,644.16 = 505,403.55 : x
  2. Step 2: Convert to fraction form
    887,376.87/1,224,644.16 = 505,403.55/x
  3. Step 3: Cross multiply
    887,376.87x = 1,224,644.16 × 505,403.55
  4. Step 4: Simplify right side
    887,376.87x = 618,939,507,846.03
  5. Step 5: Solve for x
    x = 618,939,507,846.03/887,376.87
  6. Step 6: Final answer
    x = 697,493.40

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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.