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Finding the Fourth Proportional to 673,700.37, 929,708.62 and 431,983.90

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Solution

The fourth proportional to 673,700.37, 929,708.62 and 431,983.90 is: 596,139.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,700.37 : 929,708.62 = 431,983.90 : x
  2. Step 2: Convert to fraction form
    673,700.37/929,708.62 = 431,983.90/x
  3. Step 3: Cross multiply
    673,700.37x = 929,708.62 × 431,983.90
  4. Step 4: Simplify right side
    673,700.37x = 401,619,155,531.22
  5. Step 5: Solve for x
    x = 401,619,155,531.22/673,700.37
  6. Step 6: Final answer
    x = 596,139.13

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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.