Home / 1,242,210.78-1,714,311.69-698,517.72

Finding the Fourth Proportional to 1,242,210.78, 1,714,311.69 and 698,517.72

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Solution

The fourth proportional to 1,242,210.78, 1,714,311.69 and 698,517.72 is: 963,988.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,210.78 : 1,714,311.69 = 698,517.72 : x
  2. Step 2: Convert to fraction form
    1,242,210.78/1,714,311.69 = 698,517.72/x
  3. Step 3: Cross multiply
    1,242,210.78x = 1,714,311.69 × 698,517.72
  4. Step 4: Simplify right side
    1,242,210.78x = 1,197,477,093,068.15
  5. Step 5: Solve for x
    x = 1,197,477,093,068.15/1,242,210.78
  6. Step 6: Final answer
    x = 963,988.65

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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.