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Finding the Fourth Proportional to 634,078.95, 875,008.60 and 347,592.88

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Solution

The fourth proportional to 634,078.95, 875,008.60 and 347,592.88 is: 479,667.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,078.95 : 875,008.60 = 347,592.88 : x
  2. Step 2: Convert to fraction form
    634,078.95/875,008.60 = 347,592.88/x
  3. Step 3: Cross multiply
    634,078.95x = 875,008.60 × 347,592.88
  4. Step 4: Simplify right side
    634,078.95x = 304,146,759,298.77
  5. Step 5: Solve for x
    x = 304,146,759,298.77/634,078.95
  6. Step 6: Final answer
    x = 479,667.02

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1.5x scale

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.