Home / 476,420.39-657,464.86-258,630.75

Finding the Fourth Proportional to 476,420.39, 657,464.86 and 258,630.75

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Solution

The fourth proportional to 476,420.39, 657,464.86 and 258,630.75 is: 356,913.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,420.39 : 657,464.86 = 258,630.75 : x
  2. Step 2: Convert to fraction form
    476,420.39/657,464.86 = 258,630.75/x
  3. Step 3: Cross multiply
    476,420.39x = 657,464.86 × 258,630.75
  4. Step 4: Simplify right side
    476,420.39x = 170,040,629,840.45
  5. Step 5: Solve for x
    x = 170,040,629,840.45/476,420.39
  6. Step 6: Final answer
    x = 356,913.00

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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.