Home / 628,271.76-942,403.28-254,289.36

Finding the Fourth Proportional to 628,271.76, 942,403.28 and 254,289.36

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Solution

The fourth proportional to 628,271.76, 942,403.28 and 254,289.36 is: 381,432.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,271.76 : 942,403.28 = 254,289.36 : x
  2. Step 2: Convert to fraction form
    628,271.76/942,403.28 = 254,289.36/x
  3. Step 3: Cross multiply
    628,271.76x = 942,403.28 × 254,289.36
  4. Step 4: Simplify right side
    628,271.76x = 239,643,126,933.10
  5. Step 5: Solve for x
    x = 239,643,126,933.10/628,271.76
  6. Step 6: Final answer
    x = 381,432.28

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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.