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Finding the Fourth Proportional to 634,871.72, 876,148.23 and 348,402.06

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Solution

The fourth proportional to 634,871.72, 876,148.23 and 348,402.06 is: 480,808.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,871.72 : 876,148.23 = 348,402.06 : x
  2. Step 2: Convert to fraction form
    634,871.72/876,148.23 = 348,402.06/x
  3. Step 3: Cross multiply
    634,871.72x = 876,148.23 × 348,402.06
  4. Step 4: Simplify right side
    634,871.72x = 305,251,848,197.35
  5. Step 5: Solve for x
    x = 305,251,848,197.35/634,871.72
  6. Step 6: Final answer
    x = 480,808.70

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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.