Home / 2,688,047.55-4,031,434.67-768,899.70

Finding the Fourth Proportional to 2,688,047.55, 4,031,434.67 and 768,899.70

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Solution

The fourth proportional to 2,688,047.55, 4,031,434.67 and 768,899.70 is: 1,153,167.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688,047.55 : 4,031,434.67 = 768,899.70 : x
  2. Step 2: Convert to fraction form
    2,688,047.55/4,031,434.67 = 768,899.70/x
  3. Step 3: Cross multiply
    2,688,047.55x = 4,031,434.67 × 768,899.70
  4. Step 4: Simplify right side
    2,688,047.55x = 3,099,768,904,488.10
  5. Step 5: Solve for x
    x = 3,099,768,904,488.10/2,688,047.55
  6. Step 6: Final answer
    x = 1,153,167.44

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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.