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Finding the Fourth Proportional to 449,985.60, 674,200.80 and 370,670.40

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Solution

The fourth proportional to 449,985.60, 674,200.80 and 370,670.40 is: 555,365.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,985.60 : 674,200.80 = 370,670.40 : x
  2. Step 2: Convert to fraction form
    449,985.60/674,200.80 = 370,670.40/x
  3. Step 3: Cross multiply
    449,985.60x = 674,200.80 × 370,670.40
  4. Step 4: Simplify right side
    449,985.60x = 249,906,280,216.32
  5. Step 5: Solve for x
    x = 249,906,280,216.32/449,985.60
  6. Step 6: Final answer
    x = 555,365.06

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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.