Home / 879,585.42-1,213,942.36-492,548.22

Finding the Fourth Proportional to 879,585.42, 1,213,942.36 and 492,548.22

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Solution

The fourth proportional to 879,585.42, 1,213,942.36 and 492,548.22 is: 679,780.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,585.42 : 1,213,942.36 = 492,548.22 : x
  2. Step 2: Convert to fraction form
    879,585.42/1,213,942.36 = 492,548.22/x
  3. Step 3: Cross multiply
    879,585.42x = 1,213,942.36 × 492,548.22
  4. Step 4: Simplify right side
    879,585.42x = 597,925,148,600.60
  5. Step 5: Solve for x
    x = 597,925,148,600.60/879,585.42
  6. Step 6: Final answer
    x = 679,780.65

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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.