Home / 989,984.22-1,484,738.43-456,993.30

Finding the Fourth Proportional to 989,984.22, 1,484,738.43 and 456,993.30

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Solution

The fourth proportional to 989,984.22, 1,484,738.43 and 456,993.30 is: 685,380.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,984.22 : 1,484,738.43 = 456,993.30 : x
  2. Step 2: Convert to fraction form
    989,984.22/1,484,738.43 = 456,993.30/x
  3. Step 3: Cross multiply
    989,984.22x = 1,484,738.43 × 456,993.30
  4. Step 4: Simplify right side
    989,984.22x = 678,515,514,762.52
  5. Step 5: Solve for x
    x = 678,515,514,762.52/989,984.22
  6. Step 6: Final answer
    x = 685,380.13

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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.