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Finding the Fourth Proportional to 628,303.84, 942,641.52 and 362,255.20

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Solution

The fourth proportional to 628,303.84, 942,641.52 and 362,255.20 is: 543,489.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,303.84 : 942,641.52 = 362,255.20 : x
  2. Step 2: Convert to fraction form
    628,303.84/942,641.52 = 362,255.20/x
  3. Step 3: Cross multiply
    628,303.84x = 942,641.52 × 362,255.20
  4. Step 4: Simplify right side
    628,303.84x = 341,476,792,355.90
  5. Step 5: Solve for x
    x = 341,476,792,355.90/628,303.84
  6. Step 6: Final answer
    x = 543,489.90

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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.