Home / 525,401.36-787,742.08-188,434.80

Finding the Fourth Proportional to 525,401.36, 787,742.08 and 188,434.80

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Solution

The fourth proportional to 525,401.36, 787,742.08 and 188,434.80 is: 282,523.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,401.36 : 787,742.08 = 188,434.80 : x
  2. Step 2: Convert to fraction form
    525,401.36/787,742.08 = 188,434.80/x
  3. Step 3: Cross multiply
    525,401.36x = 787,742.08 × 188,434.80
  4. Step 4: Simplify right side
    525,401.36x = 148,438,021,296.38
  5. Step 5: Solve for x
    x = 148,438,021,296.38/525,401.36
  6. Step 6: Final answer
    x = 282,523.10

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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.