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Finding the Fourth Proportional to 634,265, 875,312.18 and 347,796.08

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Solution

The fourth proportional to 634,265, 875,312.18 and 347,796.08 is: 479,973.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,265 : 875,312.18 = 347,796.08 : x
  2. Step 2: Convert to fraction form
    634,265/875,312.18 = 347,796.08/x
  3. Step 3: Cross multiply
    634,265x = 875,312.18 × 347,796.08
  4. Step 4: Simplify right side
    634,265x = 304,430,144,980.25
  5. Step 5: Solve for x
    x = 304,430,144,980.25/634,265
  6. Step 6: Final answer
    x = 479,973.11

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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.