Home / 1,292,469.28-1,938,555.60-345,913.84

Finding the Fourth Proportional to 1,292,469.28, 1,938,555.60 and 345,913.84

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Solution

The fourth proportional to 1,292,469.28, 1,938,555.60 and 345,913.84 is: 518,831.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,469.28 : 1,938,555.60 = 345,913.84 : x
  2. Step 2: Convert to fraction form
    1,292,469.28/1,938,555.60 = 345,913.84/x
  3. Step 3: Cross multiply
    1,292,469.28x = 1,938,555.60 × 345,913.84
  4. Step 4: Simplify right side
    1,292,469.28x = 670,573,211,649.50
  5. Step 5: Solve for x
    x = 670,573,211,649.50/1,292,469.28
  6. Step 6: Final answer
    x = 518,831.06

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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.