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Finding the Fourth Proportional to 2,938,630.40, 4,402,502.40 and 1,672,697.60

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Solution

The fourth proportional to 2,938,630.40, 4,402,502.40 and 1,672,697.60 is: 2,505,948.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938,630.40 : 4,402,502.40 = 1,672,697.60 : x
  2. Step 2: Convert to fraction form
    2,938,630.40/4,402,502.40 = 1,672,697.60/x
  3. Step 3: Cross multiply
    2,938,630.40x = 4,402,502.40 × 1,672,697.60
  4. Step 4: Simplify right side
    2,938,630.40x = 7,364,055,198,474.24
  5. Step 5: Solve for x
    x = 7,364,055,198,474.24/2,938,630.40
  6. Step 6: Final answer
    x = 2,505,948.08

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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.