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Finding the Fourth Proportional to 389,577.54, 584,307.84 and 123,303.54

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Solution

The fourth proportional to 389,577.54, 584,307.84 and 123,303.54 is: 184,936.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,577.54 : 584,307.84 = 123,303.54 : x
  2. Step 2: Convert to fraction form
    389,577.54/584,307.84 = 123,303.54/x
  3. Step 3: Cross multiply
    389,577.54x = 584,307.84 × 123,303.54
  4. Step 4: Simplify right side
    389,577.54x = 72,047,225,121.75
  5. Step 5: Solve for x
    x = 72,047,225,121.75/389,577.54
  6. Step 6: Final answer
    x = 184,936.80

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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.