Home / 891,907.05-1,230,832.56-509,941.83

Finding the Fourth Proportional to 891,907.05, 1,230,832.56 and 509,941.83

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Solution

The fourth proportional to 891,907.05, 1,230,832.56 and 509,941.83 is: 703,720.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,907.05 : 1,230,832.56 = 509,941.83 : x
  2. Step 2: Convert to fraction form
    891,907.05/1,230,832.56 = 509,941.83/x
  3. Step 3: Cross multiply
    891,907.05x = 1,230,832.56 × 509,941.83
  4. Step 4: Simplify right side
    891,907.05x = 627,653,001,915.82
  5. Step 5: Solve for x
    x = 627,653,001,915.82/891,907.05
  6. Step 6: Final answer
    x = 703,720.20

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1.5x scale

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.