Home / 885,880.20-1,328,820.30-511,465.80

Finding the Fourth Proportional to 885,880.20, 1,328,820.30 and 511,465.80

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Solution

The fourth proportional to 885,880.20, 1,328,820.30 and 511,465.80 is: 767,198.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,880.20 : 1,328,820.30 = 511,465.80 : x
  2. Step 2: Convert to fraction form
    885,880.20/1,328,820.30 = 511,465.80/x
  3. Step 3: Cross multiply
    885,880.20x = 1,328,820.30 × 511,465.80
  4. Step 4: Simplify right side
    885,880.20x = 679,646,137,795.74
  5. Step 5: Solve for x
    x = 679,646,137,795.74/885,880.20
  6. Step 6: Final answer
    x = 767,198.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.