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Finding the Fourth Proportional to 2,788,368.40, 4,182,466.20 and 793,824.40

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Solution

The fourth proportional to 2,788,368.40, 4,182,466.20 and 793,824.40 is: 1,190,712.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788,368.40 : 4,182,466.20 = 793,824.40 : x
  2. Step 2: Convert to fraction form
    2,788,368.40/4,182,466.20 = 793,824.40/x
  3. Step 3: Cross multiply
    2,788,368.40x = 4,182,466.20 × 793,824.40
  4. Step 4: Simplify right side
    2,788,368.40x = 3,320,143,721,735.28
  5. Step 5: Solve for x
    x = 3,320,143,721,735.28/2,788,368.40
  6. Step 6: Final answer
    x = 1,190,712.00

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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.