Home / 831,981.24-1,148,143.14-505,199.16

Finding the Fourth Proportional to 831,981.24, 1,148,143.14 and 505,199.16

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Solution

The fourth proportional to 831,981.24, 1,148,143.14 and 505,199.16 is: 697,180.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,981.24 : 1,148,143.14 = 505,199.16 : x
  2. Step 2: Convert to fraction form
    831,981.24/1,148,143.14 = 505,199.16/x
  3. Step 3: Cross multiply
    831,981.24x = 1,148,143.14 × 505,199.16
  4. Step 4: Simplify right side
    831,981.24x = 580,040,949,887.76
  5. Step 5: Solve for x
    x = 580,040,949,887.76/831,981.24
  6. Step 6: Final answer
    x = 697,180.32

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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.