Home / 821,661.90-1,232,492.85-556,241.10

Finding the Fourth Proportional to 821,661.90, 1,232,492.85 and 556,241.10

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Solution

The fourth proportional to 821,661.90, 1,232,492.85 and 556,241.10 is: 834,361.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,661.90 : 1,232,492.85 = 556,241.10 : x
  2. Step 2: Convert to fraction form
    821,661.90/1,232,492.85 = 556,241.10/x
  3. Step 3: Cross multiply
    821,661.90x = 1,232,492.85 × 556,241.10
  4. Step 4: Simplify right side
    821,661.90x = 685,563,178,626.14
  5. Step 5: Solve for x
    x = 685,563,178,626.14/821,661.90
  6. Step 6: Final answer
    x = 834,361.65

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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.