Home / 751,047.12-1,036,486.54-428,860.72

Finding the Fourth Proportional to 751,047.12, 1,036,486.54 and 428,860.72

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Solution

The fourth proportional to 751,047.12, 1,036,486.54 and 428,860.72 is: 591,851.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,047.12 : 1,036,486.54 = 428,860.72 : x
  2. Step 2: Convert to fraction form
    751,047.12/1,036,486.54 = 428,860.72/x
  3. Step 3: Cross multiply
    751,047.12x = 1,036,486.54 × 428,860.72
  4. Step 4: Simplify right side
    751,047.12x = 444,508,363,814.71
  5. Step 5: Solve for x
    x = 444,508,363,814.71/751,047.12
  6. Step 6: Final answer
    x = 591,851.50

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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.