Home / 728,682.32-1,085,779.46-649,185.68

Finding the Fourth Proportional to 728,682.32, 1,085,779.46 and 649,185.68

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Solution

The fourth proportional to 728,682.32, 1,085,779.46 and 649,185.68 is: 967,324.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,682.32 : 1,085,779.46 = 649,185.68 : x
  2. Step 2: Convert to fraction form
    728,682.32/1,085,779.46 = 649,185.68/x
  3. Step 3: Cross multiply
    728,682.32x = 1,085,779.46 × 649,185.68
  4. Step 4: Simplify right side
    728,682.32x = 704,872,477,070.13
  5. Step 5: Solve for x
    x = 704,872,477,070.13/728,682.32
  6. Step 6: Final answer
    x = 967,324.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.