Home / 980,674.62-1,352,784.59-911,318.48

Finding the Fourth Proportional to 980,674.62, 1,352,784.59 and 911,318.48

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Solution

The fourth proportional to 980,674.62, 1,352,784.59 and 911,318.48 is: 1,257,111.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,674.62 : 1,352,784.59 = 911,318.48 : x
  2. Step 2: Convert to fraction form
    980,674.62/1,352,784.59 = 911,318.48/x
  3. Step 3: Cross multiply
    980,674.62x = 1,352,784.59 × 911,318.48
  4. Step 4: Simplify right side
    980,674.62x = 1,232,817,585,005.71
  5. Step 5: Solve for x
    x = 1,232,817,585,005.71/980,674.62
  6. Step 6: Final answer
    x = 1,257,111.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.