Home / 1,636,538.36-2,455,142.88-689,910.80

Finding the Fourth Proportional to 1,636,538.36, 2,455,142.88 and 689,910.80

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Solution

The fourth proportional to 1,636,538.36, 2,455,142.88 and 689,910.80 is: 1,035,007.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,636,538.36 : 2,455,142.88 = 689,910.80 : x
  2. Step 2: Convert to fraction form
    1,636,538.36/2,455,142.88 = 689,910.80/x
  3. Step 3: Cross multiply
    1,636,538.36x = 2,455,142.88 × 689,910.80
  4. Step 4: Simplify right side
    1,636,538.36x = 1,693,829,588,455.10
  5. Step 5: Solve for x
    x = 1,693,829,588,455.10/1,636,538.36
  6. Step 6: Final answer
    x = 1,035,007.57

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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.