Home / 1,199,008.02-1,798,632.90-389,358.48

Finding the Fourth Proportional to 1,199,008.02, 1,798,632.90 and 389,358.48

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Solution

The fourth proportional to 1,199,008.02, 1,798,632.90 and 389,358.48 is: 584,076.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,199,008.02 : 1,798,632.90 = 389,358.48 : x
  2. Step 2: Convert to fraction form
    1,199,008.02/1,798,632.90 = 389,358.48/x
  3. Step 3: Cross multiply
    1,199,008.02x = 1,798,632.90 × 389,358.48
  4. Step 4: Simplify right side
    1,199,008.02x = 700,312,972,021.99
  5. Step 5: Solve for x
    x = 700,312,972,021.99/1,199,008.02
  6. Step 6: Final answer
    x = 584,076.97

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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.