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Finding the Fourth Proportional to 673,804.80, 1,010,648.88 and 274,487.76

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Solution

The fourth proportional to 673,804.80, 1,010,648.88 and 274,487.76 is: 411,707.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,804.80 : 1,010,648.88 = 274,487.76 : x
  2. Step 2: Convert to fraction form
    673,804.80/1,010,648.88 = 274,487.76/x
  3. Step 3: Cross multiply
    673,804.80x = 1,010,648.88 × 274,487.76
  4. Step 4: Simplify right side
    673,804.80x = 277,410,747,217.71
  5. Step 5: Solve for x
    x = 277,410,747,217.71/673,804.80
  6. Step 6: Final answer
    x = 411,707.88

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1.5x scale

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.