Home / 672,235.20-1,008,352.80-432,734.40

Finding the Fourth Proportional to 672,235.20, 1,008,352.80 and 432,734.40

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Solution

The fourth proportional to 672,235.20, 1,008,352.80 and 432,734.40 is: 649,101.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,235.20 : 1,008,352.80 = 432,734.40 : x
  2. Step 2: Convert to fraction form
    672,235.20/1,008,352.80 = 432,734.40/x
  3. Step 3: Cross multiply
    672,235.20x = 1,008,352.80 × 432,734.40
  4. Step 4: Simplify right side
    672,235.20x = 436,348,943,896.32
  5. Step 5: Solve for x
    x = 436,348,943,896.32/672,235.20
  6. Step 6: Final answer
    x = 649,101.60

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Similar ratio
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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.