Home / 879,216.32-1,318,639.95-247,982.51

Finding the Fourth Proportional to 879,216.32, 1,318,639.95 and 247,982.51

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Solution

The fourth proportional to 879,216.32, 1,318,639.95 and 247,982.51 is: 371,921.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,216.32 : 1,318,639.95 = 247,982.51 : x
  2. Step 2: Convert to fraction form
    879,216.32/1,318,639.95 = 247,982.51/x
  3. Step 3: Cross multiply
    879,216.32x = 1,318,639.95 × 247,982.51
  4. Step 4: Simplify right side
    879,216.32x = 326,999,638,580.35
  5. Step 5: Solve for x
    x = 326,999,638,580.35/879,216.32
  6. Step 6: Final answer
    x = 371,921.71

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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.