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Finding the Fourth Proportional to 520,866.60, 705,381.75 and 520,866.60

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Solution

The fourth proportional to 520,866.60, 705,381.75 and 520,866.60 is: 705,381.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,866.60 : 705,381.75 = 520,866.60 : x
  2. Step 2: Convert to fraction form
    520,866.60/705,381.75 = 520,866.60/x
  3. Step 3: Cross multiply
    520,866.60x = 705,381.75 × 520,866.60
  4. Step 4: Simplify right side
    520,866.60x = 367,409,793,824.55
  5. Step 5: Solve for x
    x = 367,409,793,824.55/520,866.60
  6. Step 6: Final answer
    x = 705,381.75

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.