Home / 525,110.70-787,666.05-258,998.70

Finding the Fourth Proportional to 525,110.70, 787,666.05 and 258,998.70

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Solution

The fourth proportional to 525,110.70, 787,666.05 and 258,998.70 is: 388,498.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,110.70 : 787,666.05 = 258,998.70 : x
  2. Step 2: Convert to fraction form
    525,110.70/787,666.05 = 258,998.70/x
  3. Step 3: Cross multiply
    525,110.70x = 787,666.05 × 258,998.70
  4. Step 4: Simplify right side
    525,110.70x = 204,004,482,984.14
  5. Step 5: Solve for x
    x = 204,004,482,984.14/525,110.70
  6. Step 6: Final answer
    x = 388,498.05

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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.