Home / 415,629.86-623,510.40-135,081.50

Finding the Fourth Proportional to 415,629.86, 623,510.40 and 135,081.50

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Solution

The fourth proportional to 415,629.86, 623,510.40 and 135,081.50 is: 202,643.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,629.86 : 623,510.40 = 135,081.50 : x
  2. Step 2: Convert to fraction form
    415,629.86/623,510.40 = 135,081.50/x
  3. Step 3: Cross multiply
    415,629.86x = 623,510.40 × 135,081.50
  4. Step 4: Simplify right side
    415,629.86x = 84,224,720,097.60
  5. Step 5: Solve for x
    x = 84,224,720,097.60/415,629.86
  6. Step 6: Final answer
    x = 202,643.57

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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.