Home / 727,374.72-1,091,036.58-221,915.28

Finding the Fourth Proportional to 727,374.72, 1,091,036.58 and 221,915.28

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Solution

The fourth proportional to 727,374.72, 1,091,036.58 and 221,915.28 is: 332,865.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,374.72 : 1,091,036.58 = 221,915.28 : x
  2. Step 2: Convert to fraction form
    727,374.72/1,091,036.58 = 221,915.28/x
  3. Step 3: Cross multiply
    727,374.72x = 1,091,036.58 × 221,915.28
  4. Step 4: Simplify right side
    727,374.72x = 242,117,688,140.94
  5. Step 5: Solve for x
    x = 242,117,688,140.94/727,374.72
  6. Step 6: Final answer
    x = 332,865.14

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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.