Home / 939,878.64-1,409,825.55-265,981.92

Finding the Fourth Proportional to 939,878.64, 1,409,825.55 and 265,981.92

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Solution

The fourth proportional to 939,878.64, 1,409,825.55 and 265,981.92 is: 398,975.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,878.64 : 1,409,825.55 = 265,981.92 : x
  2. Step 2: Convert to fraction form
    939,878.64/1,409,825.55 = 265,981.92/x
  3. Step 3: Cross multiply
    939,878.64x = 1,409,825.55 × 265,981.92
  4. Step 4: Simplify right side
    939,878.64x = 374,988,106,654.06
  5. Step 5: Solve for x
    x = 374,988,106,654.06/939,878.64
  6. Step 6: Final answer
    x = 398,975.03

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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.