Home / 879,672.21-1,213,818.59-492,467.51

Finding the Fourth Proportional to 879,672.21, 1,213,818.59 and 492,467.51

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Solution

The fourth proportional to 879,672.21, 1,213,818.59 and 492,467.51 is: 679,532.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,672.21 : 1,213,818.59 = 492,467.51 : x
  2. Step 2: Convert to fraction form
    879,672.21/1,213,818.59 = 492,467.51/x
  3. Step 3: Cross multiply
    879,672.21x = 1,213,818.59 × 492,467.51
  4. Step 4: Simplify right side
    879,672.21x = 597,766,213,771.09
  5. Step 5: Solve for x
    x = 597,766,213,771.09/879,672.21
  6. Step 6: Final answer
    x = 679,532.91

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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.