Home / 1,240,804.09-1,861,335.60-342,245.98

Finding the Fourth Proportional to 1,240,804.09, 1,861,335.60 and 342,245.98

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Solution

The fourth proportional to 1,240,804.09, 1,861,335.60 and 342,245.98 is: 513,404.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,804.09 : 1,861,335.60 = 342,245.98 : x
  2. Step 2: Convert to fraction form
    1,240,804.09/1,861,335.60 = 342,245.98/x
  3. Step 3: Cross multiply
    1,240,804.09x = 1,861,335.60 × 342,245.98
  4. Step 4: Simplify right side
    1,240,804.09x = 637,034,626,530.89
  5. Step 5: Solve for x
    x = 637,034,626,530.89/1,240,804.09
  6. Step 6: Final answer
    x = 513,404.68

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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.