Home / 751,533.57-1,036,645.72-493,423.83

Finding the Fourth Proportional to 751,533.57, 1,036,645.72 and 493,423.83

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Solution

The fourth proportional to 751,533.57, 1,036,645.72 and 493,423.83 is: 680,615.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,533.57 : 1,036,645.72 = 493,423.83 : x
  2. Step 2: Convert to fraction form
    751,533.57/1,036,645.72 = 493,423.83/x
  3. Step 3: Cross multiply
    751,533.57x = 1,036,645.72 × 493,423.83
  4. Step 4: Simplify right side
    751,533.57x = 511,505,701,515.51
  5. Step 5: Solve for x
    x = 511,505,701,515.51/751,533.57
  6. Step 6: Final answer
    x = 680,615.91

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1.5x scale

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.