Home / 751,217.78-1,036,779.81-428,855.06

Finding the Fourth Proportional to 751,217.78, 1,036,779.81 and 428,855.06

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Solution

The fourth proportional to 751,217.78, 1,036,779.81 and 428,855.06 is: 591,876.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,217.78 : 1,036,779.81 = 428,855.06 : x
  2. Step 2: Convert to fraction form
    751,217.78/1,036,779.81 = 428,855.06/x
  3. Step 3: Cross multiply
    751,217.78x = 1,036,779.81 × 428,855.06
  4. Step 4: Simplify right side
    751,217.78x = 444,628,267,624.34
  5. Step 5: Solve for x
    x = 444,628,267,624.34/751,217.78
  6. Step 6: Final answer
    x = 591,876.66

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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.