Home / 838,874.64-1,258,005.78-306,238.08

Finding the Fourth Proportional to 838,874.64, 1,258,005.78 and 306,238.08

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Solution

The fourth proportional to 838,874.64, 1,258,005.78 and 306,238.08 is: 459,245.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,874.64 : 1,258,005.78 = 306,238.08 : x
  2. Step 2: Convert to fraction form
    838,874.64/1,258,005.78 = 306,238.08/x
  3. Step 3: Cross multiply
    838,874.64x = 1,258,005.78 × 306,238.08
  4. Step 4: Simplify right side
    838,874.64x = 385,249,274,696.10
  5. Step 5: Solve for x
    x = 385,249,274,696.10/838,874.64
  6. Step 6: Final answer
    x = 459,245.35

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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.