Home / 2,709,733.20-4,064,601.68-688,128.72

Finding the Fourth Proportional to 2,709,733.20, 4,064,601.68 and 688,128.72

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Solution

The fourth proportional to 2,709,733.20, 4,064,601.68 and 688,128.72 is: 1,032,193.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,709,733.20 : 4,064,601.68 = 688,128.72 : x
  2. Step 2: Convert to fraction form
    2,709,733.20/4,064,601.68 = 688,128.72/x
  3. Step 3: Cross multiply
    2,709,733.20x = 4,064,601.68 × 688,128.72
  4. Step 4: Simplify right side
    2,709,733.20x = 2,796,969,151,368.25
  5. Step 5: Solve for x
    x = 2,796,969,151,368.25/2,709,733.20
  6. Step 6: Final answer
    x = 1,032,193.56

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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.