Home / 845,825.02-1,268,971.72-390,555.20

Finding the Fourth Proportional to 845,825.02, 1,268,971.72 and 390,555.20

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Solution

The fourth proportional to 845,825.02, 1,268,971.72 and 390,555.20 is: 585,940.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,825.02 : 1,268,971.72 = 390,555.20 : x
  2. Step 2: Convert to fraction form
    845,825.02/1,268,971.72 = 390,555.20/x
  3. Step 3: Cross multiply
    845,825.02x = 1,268,971.72 × 390,555.20
  4. Step 4: Simplify right side
    845,825.02x = 495,603,503,898.94
  5. Step 5: Solve for x
    x = 495,603,503,898.94/845,825.02
  6. Step 6: Final answer
    x = 585,940.94

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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.