Home / 872,427.86-1,308,639.81-273,434.66

Finding the Fourth Proportional to 872,427.86, 1,308,639.81 and 273,434.66

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Solution

The fourth proportional to 872,427.86, 1,308,639.81 and 273,434.66 is: 410,151.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,427.86 : 1,308,639.81 = 273,434.66 : x
  2. Step 2: Convert to fraction form
    872,427.86/1,308,639.81 = 273,434.66/x
  3. Step 3: Cross multiply
    872,427.86x = 1,308,639.81 × 273,434.66
  4. Step 4: Simplify right side
    872,427.86x = 357,827,481,509.82
  5. Step 5: Solve for x
    x = 357,827,481,509.82/872,427.86
  6. Step 6: Final answer
    x = 410,151.37

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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.