Home / 1,299,128.02-1,948,566.73-400,328.43

Finding the Fourth Proportional to 1,299,128.02, 1,948,566.73 and 400,328.43

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Solution

The fourth proportional to 1,299,128.02, 1,948,566.73 and 400,328.43 is: 600,454.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,128.02 : 1,948,566.73 = 400,328.43 : x
  2. Step 2: Convert to fraction form
    1,299,128.02/1,948,566.73 = 400,328.43/x
  3. Step 3: Cross multiply
    1,299,128.02x = 1,948,566.73 × 400,328.43
  4. Step 4: Simplify right side
    1,299,128.02x = 780,066,652,213.80
  5. Step 5: Solve for x
    x = 780,066,652,213.80/1,299,128.02
  6. Step 6: Final answer
    x = 600,454.03

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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.