Home / 879,442.86-1,213,529.00-492,279.87

Finding the Fourth Proportional to 879,442.86, 1,213,529.00 and 492,279.87

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Solution

The fourth proportional to 879,442.86, 1,213,529.00 and 492,279.87 is: 679,289.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,442.86 : 1,213,529.00 = 492,279.87 : x
  2. Step 2: Convert to fraction form
    879,442.86/1,213,529.00 = 492,279.87/x
  3. Step 3: Cross multiply
    879,442.86x = 1,213,529.00 × 492,279.87
  4. Step 4: Simplify right side
    879,442.86x = 597,395,895,899.83
  5. Step 5: Solve for x
    x = 597,395,895,899.83/879,442.86
  6. Step 6: Final answer
    x = 679,289.04

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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.