Home / 2,154,303.56-2,972,803.74-1,187,380.64

Finding the Fourth Proportional to 2,154,303.56, 2,972,803.74 and 1,187,380.64

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Solution

The fourth proportional to 2,154,303.56, 2,972,803.74 and 1,187,380.64 is: 1,638,510.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154,303.56 : 2,972,803.74 = 1,187,380.64 : x
  2. Step 2: Convert to fraction form
    2,154,303.56/2,972,803.74 = 1,187,380.64/x
  3. Step 3: Cross multiply
    2,154,303.56x = 2,972,803.74 × 1,187,380.64
  4. Step 4: Simplify right side
    2,154,303.56x = 3,529,849,607,395.59
  5. Step 5: Solve for x
    x = 3,529,849,607,395.59/2,154,303.56
  6. Step 6: Final answer
    x = 1,638,510.78

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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.