Home / 1,126,728.54-1,688,911.82-416,303.46

Finding the Fourth Proportional to 1,126,728.54, 1,688,911.82 and 416,303.46

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Solution

The fourth proportional to 1,126,728.54, 1,688,911.82 and 416,303.46 is: 624,018.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,728.54 : 1,688,911.82 = 416,303.46 : x
  2. Step 2: Convert to fraction form
    1,126,728.54/1,688,911.82 = 416,303.46/x
  3. Step 3: Cross multiply
    1,126,728.54x = 1,688,911.82 × 416,303.46
  4. Step 4: Simplify right side
    1,126,728.54x = 703,099,834,300.90
  5. Step 5: Solve for x
    x = 703,099,834,300.90/1,126,728.54
  6. Step 6: Final answer
    x = 624,018.84

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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.