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Finding the Fourth Proportional to 628,540.40, 942,810.60 and 452,705.60

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Solution

The fourth proportional to 628,540.40, 942,810.60 and 452,705.60 is: 679,058.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,540.40 : 942,810.60 = 452,705.60 : x
  2. Step 2: Convert to fraction form
    628,540.40/942,810.60 = 452,705.60/x
  3. Step 3: Cross multiply
    628,540.40x = 942,810.60 × 452,705.60
  4. Step 4: Simplify right side
    628,540.40x = 426,815,638,359.36
  5. Step 5: Solve for x
    x = 426,815,638,359.36/628,540.40
  6. Step 6: Final answer
    x = 679,058.40

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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.