Home / 909,866.07-1,364,749.90-278,781.71

Finding the Fourth Proportional to 909,866.07, 1,364,749.90 and 278,781.71

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Solution

The fourth proportional to 909,866.07, 1,364,749.90 and 278,781.71 is: 418,157.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,866.07 : 1,364,749.90 = 278,781.71 : x
  2. Step 2: Convert to fraction form
    909,866.07/1,364,749.90 = 278,781.71/x
  3. Step 3: Cross multiply
    909,866.07x = 1,364,749.90 × 278,781.71
  4. Step 4: Simplify right side
    909,866.07x = 380,467,303,323.63
  5. Step 5: Solve for x
    x = 380,467,303,323.63/909,866.07
  6. Step 6: Final answer
    x = 418,157.48

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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.