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Finding the Fourth Proportional to 671,309.68, 926,486.24 and 377,007.76

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Solution

The fourth proportional to 671,309.68, 926,486.24 and 377,007.76 is: 520,315.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,309.68 : 926,486.24 = 377,007.76 : x
  2. Step 2: Convert to fraction form
    671,309.68/926,486.24 = 377,007.76/x
  3. Step 3: Cross multiply
    671,309.68x = 926,486.24 × 377,007.76
  4. Step 4: Simplify right side
    671,309.68x = 349,292,500,128.18
  5. Step 5: Solve for x
    x = 349,292,500,128.18/671,309.68
  6. Step 6: Final answer
    x = 520,315.01

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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.