Home / 482,780.55-666,083.05-278,804.53

Finding the Fourth Proportional to 482,780.55, 666,083.05 and 278,804.53

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Solution

The fourth proportional to 482,780.55, 666,083.05 and 278,804.53 is: 384,661.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,780.55 : 666,083.05 = 278,804.53 : x
  2. Step 2: Convert to fraction form
    482,780.55/666,083.05 = 278,804.53/x
  3. Step 3: Cross multiply
    482,780.55x = 666,083.05 × 278,804.53
  4. Step 4: Simplify right side
    482,780.55x = 185,706,971,831.81
  5. Step 5: Solve for x
    x = 185,706,971,831.81/482,780.55
  6. Step 6: Final answer
    x = 384,661.25

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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.