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Finding the Fourth Proportional to 807,477.60, 1,210,179.60 and 619,557.60

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Solution

The fourth proportional to 807,477.60, 1,210,179.60 and 619,557.60 is: 928,540.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,477.60 : 1,210,179.60 = 619,557.60 : x
  2. Step 2: Convert to fraction form
    807,477.60/1,210,179.60 = 619,557.60/x
  3. Step 3: Cross multiply
    807,477.60x = 1,210,179.60 × 619,557.60
  4. Step 4: Simplify right side
    807,477.60x = 749,775,968,544.96
  5. Step 5: Solve for x
    x = 749,775,968,544.96/807,477.60
  6. Step 6: Final answer
    x = 928,540.89

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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.