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Finding the Fourth Proportional to 2,788,308.40, 4,182,376.20 and 793,764.40

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Solution

The fourth proportional to 2,788,308.40, 4,182,376.20 and 793,764.40 is: 1,190,622.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788,308.40 : 4,182,376.20 = 793,764.40 : x
  2. Step 2: Convert to fraction form
    2,788,308.40/4,182,376.20 = 793,764.40/x
  3. Step 3: Cross multiply
    2,788,308.40x = 4,182,376.20 × 793,764.40
  4. Step 4: Simplify right side
    2,788,308.40x = 3,319,821,334,967.28
  5. Step 5: Solve for x
    x = 3,319,821,334,967.28/2,788,308.40
  6. Step 6: Final answer
    x = 1,190,622.00

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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.