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Finding the Fourth Proportional to 507,366.90, 699,900.89 and 313,712.73

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Solution

The fourth proportional to 507,366.90, 699,900.89 and 313,712.73 is: 432,759.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,366.90 : 699,900.89 = 313,712.73 : x
  2. Step 2: Convert to fraction form
    507,366.90/699,900.89 = 313,712.73/x
  3. Step 3: Cross multiply
    507,366.90x = 699,900.89 × 313,712.73
  4. Step 4: Simplify right side
    507,366.90x = 219,567,817,362.77
  5. Step 5: Solve for x
    x = 219,567,817,362.77/507,366.90
  6. Step 6: Final answer
    x = 432,759.44

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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.