Home / 872,428.86-1,308,641.31-273,435.66

Finding the Fourth Proportional to 872,428.86, 1,308,641.31 and 273,435.66

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Solution

The fourth proportional to 872,428.86, 1,308,641.31 and 273,435.66 is: 410,152.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,428.86 : 1,308,641.31 = 273,435.66 : x
  2. Step 2: Convert to fraction form
    872,428.86/1,308,641.31 = 273,435.66/x
  3. Step 3: Cross multiply
    872,428.86x = 1,308,641.31 × 273,435.66
  4. Step 4: Simplify right side
    872,428.86x = 357,829,200,303.12
  5. Step 5: Solve for x
    x = 357,829,200,303.12/872,428.86
  6. Step 6: Final answer
    x = 410,152.87

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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.