Home / 1,515,406.40-2,091,531.75-903,598.55

Finding the Fourth Proportional to 1,515,406.40, 2,091,531.75 and 903,598.55

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Solution

The fourth proportional to 1,515,406.40, 2,091,531.75 and 903,598.55 is: 1,247,127.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,406.40 : 2,091,531.75 = 903,598.55 : x
  2. Step 2: Convert to fraction form
    1,515,406.40/2,091,531.75 = 903,598.55/x
  3. Step 3: Cross multiply
    1,515,406.40x = 2,091,531.75 × 903,598.55
  4. Step 4: Simplify right side
    1,515,406.40x = 1,889,905,056,578.96
  5. Step 5: Solve for x
    x = 1,889,905,056,578.96/1,515,406.40
  6. Step 6: Final answer
    x = 1,247,127.54

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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.