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Finding the Fourth Proportional to 616,835.32, 850,904.40 and 375,191.80

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Solution

The fourth proportional to 616,835.32, 850,904.40 and 375,191.80 is: 517,564.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,835.32 : 850,904.40 = 375,191.80 : x
  2. Step 2: Convert to fraction form
    616,835.32/850,904.40 = 375,191.80/x
  3. Step 3: Cross multiply
    616,835.32x = 850,904.40 × 375,191.80
  4. Step 4: Simplify right side
    616,835.32x = 319,252,353,463.92
  5. Step 5: Solve for x
    x = 319,252,353,463.92/616,835.32
  6. Step 6: Final answer
    x = 517,564.97

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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.