Home / 423,222.35-634,685.89-186,435.86

Finding the Fourth Proportional to 423,222.35, 634,685.89 and 186,435.86

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Solution

The fourth proportional to 423,222.35, 634,685.89 and 186,435.86 is: 279,588.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,222.35 : 634,685.89 = 186,435.86 : x
  2. Step 2: Convert to fraction form
    423,222.35/634,685.89 = 186,435.86/x
  3. Step 3: Cross multiply
    423,222.35x = 634,685.89 × 186,435.86
  4. Step 4: Simplify right side
    423,222.35x = 118,328,206,558.59
  5. Step 5: Solve for x
    x = 118,328,206,558.59/423,222.35
  6. Step 6: Final answer
    x = 279,588.75

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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.