Home / 877,910.71-1,316,971.56-309,174.25

Finding the Fourth Proportional to 877,910.71, 1,316,971.56 and 309,174.25

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Solution

The fourth proportional to 877,910.71, 1,316,971.56 and 309,174.25 is: 463,798.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,910.71 : 1,316,971.56 = 309,174.25 : x
  2. Step 2: Convert to fraction form
    877,910.71/1,316,971.56 = 309,174.25/x
  3. Step 3: Cross multiply
    877,910.71x = 1,316,971.56 × 309,174.25
  4. Step 4: Simplify right side
    877,910.71x = 407,173,694,334.33
  5. Step 5: Solve for x
    x = 407,173,694,334.33/877,910.71
  6. Step 6: Final answer
    x = 463,798.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.