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Finding the Fourth Proportional to 657,350.67, 907,143.93 and 355,544.67

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Solution

The fourth proportional to 657,350.67, 907,143.93 and 355,544.67 is: 490,651.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,350.67 : 907,143.93 = 355,544.67 : x
  2. Step 2: Convert to fraction form
    657,350.67/907,143.93 = 355,544.67/x
  3. Step 3: Cross multiply
    657,350.67x = 907,143.93 × 355,544.67
  4. Step 4: Simplify right side
    657,350.67x = 322,530,189,234.35
  5. Step 5: Solve for x
    x = 322,530,189,234.35/657,350.67
  6. Step 6: Final answer
    x = 490,651.65

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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.