Home / 830,004.40-1,245,006.60-759,145.60

Finding the Fourth Proportional to 830,004.40, 1,245,006.60 and 759,145.60

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Solution

The fourth proportional to 830,004.40, 1,245,006.60 and 759,145.60 is: 1,138,718.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,004.40 : 1,245,006.60 = 759,145.60 : x
  2. Step 2: Convert to fraction form
    830,004.40/1,245,006.60 = 759,145.60/x
  3. Step 3: Cross multiply
    830,004.40x = 1,245,006.60 × 759,145.60
  4. Step 4: Simplify right side
    830,004.40x = 945,141,282,360.96
  5. Step 5: Solve for x
    x = 945,141,282,360.96/830,004.40
  6. Step 6: Final answer
    x = 1,138,718.40

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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.