Home / 1,515,095.61-2,089,136.57-1,238,590.46

Finding the Fourth Proportional to 1,515,095.61, 2,089,136.57 and 1,238,590.46

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Solution

The fourth proportional to 1,515,095.61, 2,089,136.57 and 1,238,590.46 is: 1,707,868.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,095.61 : 2,089,136.57 = 1,238,590.46 : x
  2. Step 2: Convert to fraction form
    1,515,095.61/2,089,136.57 = 1,238,590.46/x
  3. Step 3: Cross multiply
    1,515,095.61x = 2,089,136.57 × 1,238,590.46
  4. Step 4: Simplify right side
    1,515,095.61x = 2,587,584,625,239.12
  5. Step 5: Solve for x
    x = 2,587,584,625,239.12/1,515,095.61
  6. Step 6: Final answer
    x = 1,707,868.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.