Home / 1,224,034.10-1,688,643.03-764,350.61

Finding the Fourth Proportional to 1,224,034.10, 1,688,643.03 and 764,350.61

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Solution

The fourth proportional to 1,224,034.10, 1,688,643.03 and 764,350.61 is: 1,054,476.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,034.10 : 1,688,643.03 = 764,350.61 : x
  2. Step 2: Convert to fraction form
    1,224,034.10/1,688,643.03 = 764,350.61/x
  3. Step 3: Cross multiply
    1,224,034.10x = 1,688,643.03 × 764,350.61
  4. Step 4: Simplify right side
    1,224,034.10x = 1,290,715,322,009.39
  5. Step 5: Solve for x
    x = 1,290,715,322,009.39/1,224,034.10
  6. Step 6: Final answer
    x = 1,054,476.61

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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.