Home / 808,712.20-1,213,068.30-310,076.20

Finding the Fourth Proportional to 808,712.20, 1,213,068.30 and 310,076.20

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Solution

The fourth proportional to 808,712.20, 1,213,068.30 and 310,076.20 is: 465,114.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,712.20 : 1,213,068.30 = 310,076.20 : x
  2. Step 2: Convert to fraction form
    808,712.20/1,213,068.30 = 310,076.20/x
  3. Step 3: Cross multiply
    808,712.20x = 1,213,068.30 × 310,076.20
  4. Step 4: Simplify right side
    808,712.20x = 376,143,608,804.46
  5. Step 5: Solve for x
    x = 376,143,608,804.46/808,712.20
  6. Step 6: Final answer
    x = 465,114.30

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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.