Home / 899,897.71-1,242,171.57-518,076.67

Finding the Fourth Proportional to 899,897.71, 1,242,171.57 and 518,076.67

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Solution

The fourth proportional to 899,897.71, 1,242,171.57 and 518,076.67 is: 715,125.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,897.71 : 1,242,171.57 = 518,076.67 : x
  2. Step 2: Convert to fraction form
    899,897.71/1,242,171.57 = 518,076.67/x
  3. Step 3: Cross multiply
    899,897.71x = 1,242,171.57 × 518,076.67
  4. Step 4: Simplify right side
    899,897.71x = 643,540,110,554.27
  5. Step 5: Solve for x
    x = 643,540,110,554.27/899,897.71
  6. Step 6: Final answer
    x = 715,125.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.