Home / 1,237,988.82-1,857,148.48-489,859.86

Finding the Fourth Proportional to 1,237,988.82, 1,857,148.48 and 489,859.86

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Solution

The fourth proportional to 1,237,988.82, 1,857,148.48 and 489,859.86 is: 734,855.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,237,988.82 : 1,857,148.48 = 489,859.86 : x
  2. Step 2: Convert to fraction form
    1,237,988.82/1,857,148.48 = 489,859.86/x
  3. Step 3: Cross multiply
    1,237,988.82x = 1,857,148.48 × 489,859.86
  4. Step 4: Simplify right side
    1,237,988.82x = 909,742,494,412.01
  5. Step 5: Solve for x
    x = 909,742,494,412.01/1,237,988.82
  6. Step 6: Final answer
    x = 734,855.18

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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.