Home / 1,515,407.40-2,091,533.13-903,599.55

Finding the Fourth Proportional to 1,515,407.40, 2,091,533.13 and 903,599.55

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Solution

The fourth proportional to 1,515,407.40, 2,091,533.13 and 903,599.55 is: 1,247,128.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,407.40 : 2,091,533.13 = 903,599.55 : x
  2. Step 2: Convert to fraction form
    1,515,407.40/2,091,533.13 = 903,599.55/x
  3. Step 3: Cross multiply
    1,515,407.40x = 2,091,533.13 × 903,599.55
  4. Step 4: Simplify right side
    1,515,407.40x = 1,889,908,395,078.09
  5. Step 5: Solve for x
    x = 1,889,908,395,078.09/1,515,407.40
  6. Step 6: Final answer
    x = 1,247,128.92

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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.