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Finding the Fourth Proportional to 673,437.44, 929,686.52 and 520,131.48

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Solution

The fourth proportional to 673,437.44, 929,686.52 and 520,131.48 is: 718,046.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,437.44 : 929,686.52 = 520,131.48 : x
  2. Step 2: Convert to fraction form
    673,437.44/929,686.52 = 520,131.48/x
  3. Step 3: Cross multiply
    673,437.44x = 929,686.52 × 520,131.48
  4. Step 4: Simplify right side
    673,437.44x = 483,559,224,129.07
  5. Step 5: Solve for x
    x = 483,559,224,129.07/673,437.44
  6. Step 6: Final answer
    x = 718,046.24

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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.