Home / 957,760.90-1,321,719.60-528,029.98

Finding the Fourth Proportional to 957,760.90, 1,321,719.60 and 528,029.98

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Solution

The fourth proportional to 957,760.90, 1,321,719.60 and 528,029.98 is: 728,686.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,760.90 : 1,321,719.60 = 528,029.98 : x
  2. Step 2: Convert to fraction form
    957,760.90/1,321,719.60 = 528,029.98/x
  3. Step 3: Cross multiply
    957,760.90x = 1,321,719.60 × 528,029.98
  4. Step 4: Simplify right side
    957,760.90x = 697,907,573,953.61
  5. Step 5: Solve for x
    x = 697,907,573,953.61/957,760.90
  6. Step 6: Final answer
    x = 728,686.64

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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.