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Finding the Fourth Proportional to 507,551.21, 700,411.47 and 300,958.63

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Solution

The fourth proportional to 507,551.21, 700,411.47 and 300,958.63 is: 415,317.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,551.21 : 700,411.47 = 300,958.63 : x
  2. Step 2: Convert to fraction form
    507,551.21/700,411.47 = 300,958.63/x
  3. Step 3: Cross multiply
    507,551.21x = 700,411.47 × 300,958.63
  4. Step 4: Simplify right side
    507,551.21x = 210,794,872,945.43
  5. Step 5: Solve for x
    x = 210,794,872,945.43/507,551.21
  6. Step 6: Final answer
    x = 415,317.45

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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.