Home / 1,117,811.80-1,677,155.10-407,911.60

Finding the Fourth Proportional to 1,117,811.80, 1,677,155.10 and 407,911.60

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Solution

The fourth proportional to 1,117,811.80, 1,677,155.10 and 407,911.60 is: 612,027.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,811.80 : 1,677,155.10 = 407,911.60 : x
  2. Step 2: Convert to fraction form
    1,117,811.80/1,677,155.10 = 407,911.60/x
  3. Step 3: Cross multiply
    1,117,811.80x = 1,677,155.10 × 407,911.60
  4. Step 4: Simplify right side
    1,117,811.80x = 684,131,020,289.16
  5. Step 5: Solve for x
    x = 684,131,020,289.16/1,117,811.80
  6. Step 6: Final answer
    x = 612,027.02

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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.