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Finding the Fourth Proportional to 587,431.47, 810,594.51 and 345,699.63

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Solution

The fourth proportional to 587,431.47, 810,594.51 and 345,699.63 is: 477,029.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,431.47 : 810,594.51 = 345,699.63 : x
  2. Step 2: Convert to fraction form
    587,431.47/810,594.51 = 345,699.63/x
  3. Step 3: Cross multiply
    587,431.47x = 810,594.51 × 345,699.63
  4. Step 4: Simplify right side
    587,431.47x = 280,222,222,187.03
  5. Step 5: Solve for x
    x = 280,222,222,187.03/587,431.47
  6. Step 6: Final answer
    x = 477,029.64

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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.