Home / 871,802.85-1,203,188.73-509,317.32

Finding the Fourth Proportional to 871,802.85, 1,203,188.73 and 509,317.32

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Solution

The fourth proportional to 871,802.85, 1,203,188.73 and 509,317.32 is: 702,916.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,802.85 : 1,203,188.73 = 509,317.32 : x
  2. Step 2: Convert to fraction form
    871,802.85/1,203,188.73 = 509,317.32/x
  3. Step 3: Cross multiply
    871,802.85x = 1,203,188.73 × 509,317.32
  4. Step 4: Simplify right side
    871,802.85x = 612,804,850,855.27
  5. Step 5: Solve for x
    x = 612,804,850,855.27/871,802.85
  6. Step 6: Final answer
    x = 702,916.78

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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.