Home / 739,811.43-1,020,830.31-449,271.90

Finding the Fourth Proportional to 739,811.43, 1,020,830.31 and 449,271.90

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Solution

The fourth proportional to 739,811.43, 1,020,830.31 and 449,271.90 is: 619,928.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,811.43 : 1,020,830.31 = 449,271.90 : x
  2. Step 2: Convert to fraction form
    739,811.43/1,020,830.31 = 449,271.90/x
  3. Step 3: Cross multiply
    739,811.43x = 1,020,830.31 × 449,271.90
  4. Step 4: Simplify right side
    739,811.43x = 458,630,372,951.29
  5. Step 5: Solve for x
    x = 458,630,372,951.29/739,811.43
  6. Step 6: Final answer
    x = 619,928.75

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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.