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Finding the Fourth Proportional to 507,740.75, 700,677.89 and 278,310.79

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Solution

The fourth proportional to 507,740.75, 700,677.89 and 278,310.79 is: 384,066.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,740.75 : 700,677.89 = 278,310.79 : x
  2. Step 2: Convert to fraction form
    507,740.75/700,677.89 = 278,310.79/x
  3. Step 3: Cross multiply
    507,740.75x = 700,677.89 × 278,310.79
  4. Step 4: Simplify right side
    507,740.75x = 195,006,215,253.58
  5. Step 5: Solve for x
    x = 195,006,215,253.58/507,740.75
  6. Step 6: Final answer
    x = 384,066.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.