Home / 739,829.80-1,020,855.65-449,290.28

Finding the Fourth Proportional to 739,829.80, 1,020,855.65 and 449,290.28

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Solution

The fourth proportional to 739,829.80, 1,020,855.65 and 449,290.28 is: 619,954.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,829.80 : 1,020,855.65 = 449,290.28 : x
  2. Step 2: Convert to fraction form
    739,829.80/1,020,855.65 = 449,290.28/x
  3. Step 3: Cross multiply
    739,829.80x = 1,020,855.65 × 449,290.28
  4. Step 4: Simplify right side
    739,829.80x = 458,660,520,828.08
  5. Step 5: Solve for x
    x = 458,660,520,828.08/739,829.80
  6. Step 6: Final answer
    x = 619,954.10

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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.