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Finding the Fourth Proportional to 634,515.24, 875,655.54 and 348,047.40

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Solution

The fourth proportional to 634,515.24, 875,655.54 and 348,047.40 is: 480,318.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,515.24 : 875,655.54 = 348,047.40 : x
  2. Step 2: Convert to fraction form
    634,515.24/875,655.54 = 348,047.40/x
  3. Step 3: Cross multiply
    634,515.24x = 875,655.54 × 348,047.40
  4. Step 4: Simplify right side
    634,515.24x = 304,769,633,992.60
  5. Step 5: Solve for x
    x = 304,769,633,992.60/634,515.24
  6. Step 6: Final answer
    x = 480,318.86

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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.