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Finding the Fourth Proportional to 566,870.84, 782,245.80 and 312,222

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Solution

The fourth proportional to 566,870.84, 782,245.80 and 312,222 is: 430,846.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,870.84 : 782,245.80 = 312,222 : x
  2. Step 2: Convert to fraction form
    566,870.84/782,245.80 = 312,222/x
  3. Step 3: Cross multiply
    566,870.84x = 782,245.80 × 312,222
  4. Step 4: Simplify right side
    566,870.84x = 244,234,348,167.60
  5. Step 5: Solve for x
    x = 244,234,348,167.60/566,870.84
  6. Step 6: Final answer
    x = 430,846.55

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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.