Home / 515,076.84-772,827.84-278,140.50

Finding the Fourth Proportional to 515,076.84, 772,827.84 and 278,140.50

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Solution

The fourth proportional to 515,076.84, 772,827.84 and 278,140.50 is: 417,325.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,076.84 : 772,827.84 = 278,140.50 : x
  2. Step 2: Convert to fraction form
    515,076.84/772,827.84 = 278,140.50/x
  3. Step 3: Cross multiply
    515,076.84x = 772,827.84 × 278,140.50
  4. Step 4: Simplify right side
    515,076.84x = 214,954,721,831.52
  5. Step 5: Solve for x
    x = 214,954,721,831.52/515,076.84
  6. Step 6: Final answer
    x = 417,325.54

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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.