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Finding the Fourth Proportional to 520,019.06, 778,696.92 and 359,873.25

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Solution

The fourth proportional to 520,019.06, 778,696.92 and 359,873.25 is: 538,888.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,019.06 : 778,696.92 = 359,873.25 : x
  2. Step 2: Convert to fraction form
    520,019.06/778,696.92 = 359,873.25/x
  3. Step 3: Cross multiply
    520,019.06x = 778,696.92 × 359,873.25
  4. Step 4: Simplify right side
    520,019.06x = 280,232,194,003.40
  5. Step 5: Solve for x
    x = 280,232,194,003.40/520,019.06
  6. Step 6: Final answer
    x = 538,888.31

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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.