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Finding the Fourth Proportional to 634,355.58, 875,411.91 and 347,877.78

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Solution

The fourth proportional to 634,355.58, 875,411.91 and 347,877.78 is: 480,072.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,355.58 : 875,411.91 = 347,877.78 : x
  2. Step 2: Convert to fraction form
    634,355.58/875,411.91 = 347,877.78/x
  3. Step 3: Cross multiply
    634,355.58x = 875,411.91 × 347,877.78
  4. Step 4: Simplify right side
    634,355.58x = 304,536,351,836.36
  5. Step 5: Solve for x
    x = 304,536,351,836.36/634,355.58
  6. Step 6: Final answer
    x = 480,072.00

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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.