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Finding the Fourth Proportional to 659,729.43, 910,430.55 and 373,309.38

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Solution

The fourth proportional to 659,729.43, 910,430.55 and 373,309.38 is: 515,169.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,729.43 : 910,430.55 = 373,309.38 : x
  2. Step 2: Convert to fraction form
    659,729.43/910,430.55 = 373,309.38/x
  3. Step 3: Cross multiply
    659,729.43x = 910,430.55 × 373,309.38
  4. Step 4: Simplify right side
    659,729.43x = 339,872,264,153.56
  5. Step 5: Solve for x
    x = 339,872,264,153.56/659,729.43
  6. Step 6: Final answer
    x = 515,169.17

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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.