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Finding the Fourth Proportional to 673,699.80, 1,010,565.90 and 200,400.60

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Solution

The fourth proportional to 673,699.80, 1,010,565.90 and 200,400.60 is: 300,605.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,699.80 : 1,010,565.90 = 200,400.60 : x
  2. Step 2: Convert to fraction form
    673,699.80/1,010,565.90 = 200,400.60/x
  3. Step 3: Cross multiply
    673,699.80x = 1,010,565.90 × 200,400.60
  4. Step 4: Simplify right side
    673,699.80x = 202,518,012,699.54
  5. Step 5: Solve for x
    x = 202,518,012,699.54/673,699.80
  6. Step 6: Final answer
    x = 300,605.72

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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.