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Finding the Fourth Proportional to 520,237.67, 780,419.02 and 183,208.66

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Solution

The fourth proportional to 520,237.67, 780,419.02 and 183,208.66 is: 274,835.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,237.67 : 780,419.02 = 183,208.66 : x
  2. Step 2: Convert to fraction form
    520,237.67/780,419.02 = 183,208.66/x
  3. Step 3: Cross multiply
    520,237.67x = 780,419.02 × 183,208.66
  4. Step 4: Simplify right side
    520,237.67x = 142,979,520,483.64
  5. Step 5: Solve for x
    x = 142,979,520,483.64/520,237.67
  6. Step 6: Final answer
    x = 274,835.00

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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.