Home / 879,274.24-1,213,463.70-492,128.56

Finding the Fourth Proportional to 879,274.24, 1,213,463.70 and 492,128.56

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Solution

The fourth proportional to 879,274.24, 1,213,463.70 and 492,128.56 is: 679,173.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,274.24 : 1,213,463.70 = 492,128.56 : x
  2. Step 2: Convert to fraction form
    879,274.24/1,213,463.70 = 492,128.56/x
  3. Step 3: Cross multiply
    879,274.24x = 1,213,463.70 × 492,128.56
  4. Step 4: Simplify right side
    879,274.24x = 597,180,143,293.27
  5. Step 5: Solve for x
    x = 597,180,143,293.27/879,274.24
  6. Step 6: Final answer
    x = 679,173.93

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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.