Home / 876,066.57-1,208,969.61-488,877.87

Finding the Fourth Proportional to 876,066.57, 1,208,969.61 and 488,877.87

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Solution

The fourth proportional to 876,066.57, 1,208,969.61 and 488,877.87 is: 674,650.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,066.57 : 1,208,969.61 = 488,877.87 : x
  2. Step 2: Convert to fraction form
    876,066.57/1,208,969.61 = 488,877.87/x
  3. Step 3: Cross multiply
    876,066.57x = 1,208,969.61 × 488,877.87
  4. Step 4: Simplify right side
    876,066.57x = 591,038,483,297.90
  5. Step 5: Solve for x
    x = 591,038,483,297.90/876,066.57
  6. Step 6: Final answer
    x = 674,650.20

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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.