Home / 876,820.19-1,315,281.31-245,783.21

Finding the Fourth Proportional to 876,820.19, 1,315,281.31 and 245,783.21

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Solution

The fourth proportional to 876,820.19, 1,315,281.31 and 245,783.21 is: 368,689.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,820.19 : 1,315,281.31 = 245,783.21 : x
  2. Step 2: Convert to fraction form
    876,820.19/1,315,281.31 = 245,783.21/x
  3. Step 3: Cross multiply
    876,820.19x = 1,315,281.31 × 245,783.21
  4. Step 4: Simplify right side
    876,820.19x = 323,274,055,233.94
  5. Step 5: Solve for x
    x = 323,274,055,233.94/876,820.19
  6. Step 6: Final answer
    x = 368,689.11

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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.