Home / 989,642.80-1,484,464.20-674,714.80

Finding the Fourth Proportional to 989,642.80, 1,484,464.20 and 674,714.80

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Solution

The fourth proportional to 989,642.80, 1,484,464.20 and 674,714.80 is: 1,012,072.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,642.80 : 1,484,464.20 = 674,714.80 : x
  2. Step 2: Convert to fraction form
    989,642.80/1,484,464.20 = 674,714.80/x
  3. Step 3: Cross multiply
    989,642.80x = 1,484,464.20 × 674,714.80
  4. Step 4: Simplify right side
    989,642.80x = 1,001,589,965,810.16
  5. Step 5: Solve for x
    x = 1,001,589,965,810.16/989,642.80
  6. Step 6: Final answer
    x = 1,012,072.20

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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.