Home / 877,906.96-1,316,965.88-309,170.50

Finding the Fourth Proportional to 877,906.96, 1,316,965.88 and 309,170.50

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Solution

The fourth proportional to 877,906.96, 1,316,965.88 and 309,170.50 is: 463,792.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,906.96 : 1,316,965.88 = 309,170.50 : x
  2. Step 2: Convert to fraction form
    877,906.96/1,316,965.88 = 309,170.50/x
  3. Step 3: Cross multiply
    877,906.96x = 1,316,965.88 × 309,170.50
  4. Step 4: Simplify right side
    877,906.96x = 407,166,997,083.05
  5. Step 5: Solve for x
    x = 407,166,997,083.05/877,906.96
  6. Step 6: Final answer
    x = 463,792.88

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Double scale
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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.