Home / 698,679.60-1,046,051.10-627,820.80

Finding the Fourth Proportional to 698,679.60, 1,046,051.10 and 627,820.80

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Solution

The fourth proportional to 698,679.60, 1,046,051.10 and 627,820.80 is: 939,962.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,679.60 : 1,046,051.10 = 627,820.80 : x
  2. Step 2: Convert to fraction form
    698,679.60/1,046,051.10 = 627,820.80/x
  3. Step 3: Cross multiply
    698,679.60x = 1,046,051.10 × 627,820.80
  4. Step 4: Simplify right side
    698,679.60x = 656,732,638,442.88
  5. Step 5: Solve for x
    x = 656,732,638,442.88/698,679.60
  6. Step 6: Final answer
    x = 939,962.52

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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.