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Finding the Fourth Proportional to 425,357.93, 587,035.30 and 317,741.13

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Solution

The fourth proportional to 425,357.93, 587,035.30 and 317,741.13 is: 438,513.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,357.93 : 587,035.30 = 317,741.13 : x
  2. Step 2: Convert to fraction form
    425,357.93/587,035.30 = 317,741.13/x
  3. Step 3: Cross multiply
    425,357.93x = 587,035.30 × 317,741.13
  4. Step 4: Simplify right side
    425,357.93x = 186,525,259,571.89
  5. Step 5: Solve for x
    x = 186,525,259,571.89/425,357.93
  6. Step 6: Final answer
    x = 438,513.65

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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.