Home / 567,995.05-783,835.70-309,871.21

Finding the Fourth Proportional to 567,995.05, 783,835.70 and 309,871.21

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Solution

The fourth proportional to 567,995.05, 783,835.70 and 309,871.21 is: 427,623.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,995.05 : 783,835.70 = 309,871.21 : x
  2. Step 2: Convert to fraction form
    567,995.05/783,835.70 = 309,871.21/x
  3. Step 3: Cross multiply
    567,995.05x = 783,835.70 × 309,871.21
  4. Step 4: Simplify right side
    567,995.05x = 242,888,116,800.20
  5. Step 5: Solve for x
    x = 242,888,116,800.20/567,995.05
  6. Step 6: Final answer
    x = 427,623.65

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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.