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Finding the Fourth Proportional to 555,037.02, 765,965.03 and 313,341.93

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Solution

The fourth proportional to 555,037.02, 765,965.03 and 313,341.93 is: 432,419.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,037.02 : 765,965.03 = 313,341.93 : x
  2. Step 2: Convert to fraction form
    555,037.02/765,965.03 = 313,341.93/x
  3. Step 3: Cross multiply
    555,037.02x = 765,965.03 × 313,341.93
  4. Step 4: Simplify right side
    555,037.02x = 240,008,959,246.00
  5. Step 5: Solve for x
    x = 240,008,959,246.00/555,037.02
  6. Step 6: Final answer
    x = 432,419.73

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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.