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Finding the Fourth Proportional to 507,653.70, 700,513.29 and 303,663.30

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Solution

The fourth proportional to 507,653.70, 700,513.29 and 303,663.30 is: 419,026.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,653.70 : 700,513.29 = 303,663.30 : x
  2. Step 2: Convert to fraction form
    507,653.70/700,513.29 = 303,663.30/x
  3. Step 3: Cross multiply
    507,653.70x = 700,513.29 × 303,663.30
  4. Step 4: Simplify right side
    507,653.70x = 212,720,177,335.26
  5. Step 5: Solve for x
    x = 212,720,177,335.26/507,653.70
  6. Step 6: Final answer
    x = 419,026.15

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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.