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Finding the Fourth Proportional to 476,079.50, 657,001.84 and 261,219.50

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Solution

The fourth proportional to 476,079.50, 657,001.84 and 261,219.50 is: 360,489.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,079.50 : 657,001.84 = 261,219.50 : x
  2. Step 2: Convert to fraction form
    476,079.50/657,001.84 = 261,219.50/x
  3. Step 3: Cross multiply
    476,079.50x = 657,001.84 × 261,219.50
  4. Step 4: Simplify right side
    476,079.50x = 171,621,692,143.88
  5. Step 5: Solve for x
    x = 171,621,692,143.88/476,079.50
  6. Step 6: Final answer
    x = 360,489.57

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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.