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Finding the Fourth Proportional to 628,178.34, 942,578.86 and 249,090.94

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Solution

The fourth proportional to 628,178.34, 942,578.86 and 249,090.94 is: 373,759.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,178.34 : 942,578.86 = 249,090.94 : x
  2. Step 2: Convert to fraction form
    628,178.34/942,578.86 = 249,090.94/x
  3. Step 3: Cross multiply
    628,178.34x = 942,578.86 × 249,090.94
  4. Step 4: Simplify right side
    628,178.34x = 234,787,854,261.53
  5. Step 5: Solve for x
    x = 234,787,854,261.53/628,178.34
  6. Step 6: Final answer
    x = 373,759.87

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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.