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Finding the Fourth Proportional to 382,994.76, 574,368.63 and 126,779.52

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Solution

The fourth proportional to 382,994.76, 574,368.63 and 126,779.52 is: 190,128.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,994.76 : 574,368.63 = 126,779.52 : x
  2. Step 2: Convert to fraction form
    382,994.76/574,368.63 = 126,779.52/x
  3. Step 3: Cross multiply
    382,994.76x = 574,368.63 × 126,779.52
  4. Step 4: Simplify right side
    382,994.76x = 72,818,179,214.46
  5. Step 5: Solve for x
    x = 72,818,179,214.46/382,994.76
  6. Step 6: Final answer
    x = 190,128.40

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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.