Home / 476,430.08-657,481.72-261,579.20

Finding the Fourth Proportional to 476,430.08, 657,481.72 and 261,579.20

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Solution

The fourth proportional to 476,430.08, 657,481.72 and 261,579.20 is: 360,983.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,430.08 : 657,481.72 = 261,579.20 : x
  2. Step 2: Convert to fraction form
    476,430.08/657,481.72 = 261,579.20/x
  3. Step 3: Cross multiply
    476,430.08x = 657,481.72 × 261,579.20
  4. Step 4: Simplify right side
    476,430.08x = 171,983,542,332.22
  5. Step 5: Solve for x
    x = 171,983,542,332.22/476,430.08
  6. Step 6: Final answer
    x = 360,983.80

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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.