Home / 990,114.23-1,485,491.20-457,984.33

Finding the Fourth Proportional to 990,114.23, 1,485,491.20 and 457,984.33

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Solution

The fourth proportional to 990,114.23, 1,485,491.20 and 457,984.33 is: 687,124.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,114.23 : 1,485,491.20 = 457,984.33 : x
  2. Step 2: Convert to fraction form
    990,114.23/1,485,491.20 = 457,984.33/x
  3. Step 3: Cross multiply
    990,114.23x = 1,485,491.20 × 457,984.33
  4. Step 4: Simplify right side
    990,114.23x = 680,331,687,094.21
  5. Step 5: Solve for x
    x = 680,331,687,094.21/990,114.23
  6. Step 6: Final answer
    x = 687,124.44

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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.