Home / 845,827.02-1,268,974.72-390,557.20

Finding the Fourth Proportional to 845,827.02, 1,268,974.72 and 390,557.20

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Solution

The fourth proportional to 845,827.02, 1,268,974.72 and 390,557.20 is: 585,943.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,827.02 : 1,268,974.72 = 390,557.20 : x
  2. Step 2: Convert to fraction form
    845,827.02/1,268,974.72 = 390,557.20/x
  3. Step 3: Cross multiply
    845,827.02x = 1,268,974.72 × 390,557.20
  4. Step 4: Simplify right side
    845,827.02x = 495,607,213,513.98
  5. Step 5: Solve for x
    x = 495,607,213,513.98/845,827.02
  6. Step 6: Final answer
    x = 585,943.94

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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.