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Finding the Fourth Proportional to 709,755.08, 979,813.26 and 437,972.67

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Solution

The fourth proportional to 709,755.08, 979,813.26 and 437,972.67 is: 604,619.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,755.08 : 979,813.26 = 437,972.67 : x
  2. Step 2: Convert to fraction form
    709,755.08/979,813.26 = 437,972.67/x
  3. Step 3: Cross multiply
    709,755.08x = 979,813.26 × 437,972.67
  4. Step 4: Simplify right side
    709,755.08x = 429,131,429,583.60
  5. Step 5: Solve for x
    x = 429,131,429,583.60/709,755.08
  6. Step 6: Final answer
    x = 604,619.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.