Home / 613,943.28-847,017-372,051.36

Finding the Fourth Proportional to 613,943.28, 847,017 and 372,051.36

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Solution

The fourth proportional to 613,943.28, 847,017 and 372,051.36 is: 513,294.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,943.28 : 847,017 = 372,051.36 : x
  2. Step 2: Convert to fraction form
    613,943.28/847,017 = 372,051.36/x
  3. Step 3: Cross multiply
    613,943.28x = 847,017 × 372,051.36
  4. Step 4: Simplify right side
    613,943.28x = 315,133,826,793.12
  5. Step 5: Solve for x
    x = 315,133,826,793.12/613,943.28
  6. Step 6: Final answer
    x = 513,294.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.