Home / 913,021.07-1,368,641.48-380,694.33

Finding the Fourth Proportional to 913,021.07, 1,368,641.48 and 380,694.33

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Solution

The fourth proportional to 913,021.07, 1,368,641.48 and 380,694.33 is: 570,670.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,021.07 : 1,368,641.48 = 380,694.33 : x
  2. Step 2: Convert to fraction form
    913,021.07/1,368,641.48 = 380,694.33/x
  3. Step 3: Cross multiply
    913,021.07x = 1,368,641.48 × 380,694.33
  4. Step 4: Simplify right side
    913,021.07x = 521,034,049,335.34
  5. Step 5: Solve for x
    x = 521,034,049,335.34/913,021.07
  6. Step 6: Final answer
    x = 570,670.35

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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.