Home / 1,311,680.19-1,810,247.76-767,783.01

Finding the Fourth Proportional to 1,311,680.19, 1,810,247.76 and 767,783.01

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Solution

The fourth proportional to 1,311,680.19, 1,810,247.76 and 767,783.01 is: 1,059,616.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,680.19 : 1,810,247.76 = 767,783.01 : x
  2. Step 2: Convert to fraction form
    1,311,680.19/1,810,247.76 = 767,783.01/x
  3. Step 3: Cross multiply
    1,311,680.19x = 1,810,247.76 × 767,783.01
  4. Step 4: Simplify right side
    1,311,680.19x = 1,389,877,474,018.56
  5. Step 5: Solve for x
    x = 1,389,877,474,018.56/1,311,680.19
  6. Step 6: Final answer
    x = 1,059,616.12

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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.