Home / 672,139.20-1,008,208.80-472,684.80

Finding the Fourth Proportional to 672,139.20, 1,008,208.80 and 472,684.80

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Solution

The fourth proportional to 672,139.20, 1,008,208.80 and 472,684.80 is: 709,027.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,139.20 : 1,008,208.80 = 472,684.80 : x
  2. Step 2: Convert to fraction form
    672,139.20/1,008,208.80 = 472,684.80/x
  3. Step 3: Cross multiply
    672,139.20x = 1,008,208.80 × 472,684.80
  4. Step 4: Simplify right side
    672,139.20x = 476,564,974,986.24
  5. Step 5: Solve for x
    x = 476,564,974,986.24/672,139.20
  6. Step 6: Final answer
    x = 709,027.20

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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.