Home / 1,442,915.56-1,990,739.93-831,056.07

Finding the Fourth Proportional to 1,442,915.56, 1,990,739.93 and 831,056.07

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Solution

The fourth proportional to 1,442,915.56, 1,990,739.93 and 831,056.07 is: 1,146,578.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442,915.56 : 1,990,739.93 = 831,056.07 : x
  2. Step 2: Convert to fraction form
    1,442,915.56/1,990,739.93 = 831,056.07/x
  3. Step 3: Cross multiply
    1,442,915.56x = 1,990,739.93 × 831,056.07
  4. Step 4: Simplify right side
    1,442,915.56x = 1,654,416,502,617.88
  5. Step 5: Solve for x
    x = 1,654,416,502,617.88/1,442,915.56
  6. Step 6: Final answer
    x = 1,146,578.88

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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.