Home / 3,120,245.40-4,678,985.70-1,437,864.60

Finding the Fourth Proportional to 3,120,245.40, 4,678,985.70 and 1,437,864.60

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Solution

The fourth proportional to 3,120,245.40, 4,678,985.70 and 1,437,864.60 is: 2,156,159.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,245.40 : 4,678,985.70 = 1,437,864.60 : x
  2. Step 2: Convert to fraction form
    3,120,245.40/4,678,985.70 = 1,437,864.60/x
  3. Step 3: Cross multiply
    3,120,245.40x = 4,678,985.70 × 1,437,864.60
  4. Step 4: Simplify right side
    3,120,245.40x = 6,727,747,901,936.22
  5. Step 5: Solve for x
    x = 6,727,747,901,936.22/3,120,245.40
  6. Step 6: Final answer
    x = 2,156,159.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.