Home / 486,004.20-729,006.30-170,420.10

Finding the Fourth Proportional to 486,004.20, 729,006.30 and 170,420.10

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Solution

The fourth proportional to 486,004.20, 729,006.30 and 170,420.10 is: 255,630.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,004.20 : 729,006.30 = 170,420.10 : x
  2. Step 2: Convert to fraction form
    486,004.20/729,006.30 = 170,420.10/x
  3. Step 3: Cross multiply
    486,004.20x = 729,006.30 × 170,420.10
  4. Step 4: Simplify right side
    486,004.20x = 124,237,326,546.63
  5. Step 5: Solve for x
    x = 124,237,326,546.63/486,004.20
  6. Step 6: Final answer
    x = 255,630.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.