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Finding the Fourth Proportional to 616,447.46, 850,690.86 and 340,804.13

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Solution

The fourth proportional to 616,447.46, 850,690.86 and 340,804.13 is: 470,306.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,447.46 : 850,690.86 = 340,804.13 : x
  2. Step 2: Convert to fraction form
    616,447.46/850,690.86 = 340,804.13/x
  3. Step 3: Cross multiply
    616,447.46x = 850,690.86 × 340,804.13
  4. Step 4: Simplify right side
    616,447.46x = 289,918,960,087.49
  5. Step 5: Solve for x
    x = 289,918,960,087.49/616,447.46
  6. Step 6: Final answer
    x = 470,306.03

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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.