Home / 911,927.20-1,367,890.80-281,034.40

Finding the Fourth Proportional to 911,927.20, 1,367,890.80 and 281,034.40

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Solution

The fourth proportional to 911,927.20, 1,367,890.80 and 281,034.40 is: 421,551.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,927.20 : 1,367,890.80 = 281,034.40 : x
  2. Step 2: Convert to fraction form
    911,927.20/1,367,890.80 = 281,034.40/x
  3. Step 3: Cross multiply
    911,927.20x = 1,367,890.80 × 281,034.40
  4. Step 4: Simplify right side
    911,927.20x = 384,424,370,243.52
  5. Step 5: Solve for x
    x = 384,424,370,243.52/911,927.20
  6. Step 6: Final answer
    x = 421,551.60

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1.5x scale

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.