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Finding the Fourth Proportional to 634,607.63, 875,753.43 and 344,218.45

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Solution

The fourth proportional to 634,607.63, 875,753.43 and 344,218.45 is: 475,018.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,607.63 : 875,753.43 = 344,218.45 : x
  2. Step 2: Convert to fraction form
    634,607.63/875,753.43 = 344,218.45/x
  3. Step 3: Cross multiply
    634,607.63x = 875,753.43 × 344,218.45
  4. Step 4: Simplify right side
    634,607.63x = 301,450,488,256.78
  5. Step 5: Solve for x
    x = 301,450,488,256.78/634,607.63
  6. Step 6: Final answer
    x = 475,018.70

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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.