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Finding the Fourth Proportional to 500,876.72, 751,315.16 and 303,470

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Solution

The fourth proportional to 500,876.72, 751,315.16 and 303,470 is: 455,205.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,876.72 : 751,315.16 = 303,470 : x
  2. Step 2: Convert to fraction form
    500,876.72/751,315.16 = 303,470/x
  3. Step 3: Cross multiply
    500,876.72x = 751,315.16 × 303,470
  4. Step 4: Simplify right side
    500,876.72x = 228,001,611,605.20
  5. Step 5: Solve for x
    x = 228,001,611,605.20/500,876.72
  6. Step 6: Final answer
    x = 455,205.05

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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.