Home / 672,135.20-1,008,202.80-620,813.60

Finding the Fourth Proportional to 672,135.20, 1,008,202.80 and 620,813.60

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Solution

The fourth proportional to 672,135.20, 1,008,202.80 and 620,813.60 is: 931,220.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,135.20 : 1,008,202.80 = 620,813.60 : x
  2. Step 2: Convert to fraction form
    672,135.20/1,008,202.80 = 620,813.60/x
  3. Step 3: Cross multiply
    672,135.20x = 1,008,202.80 × 620,813.60
  4. Step 4: Simplify right side
    672,135.20x = 625,906,009,798.08
  5. Step 5: Solve for x
    x = 625,906,009,798.08/672,135.20
  6. Step 6: Final answer
    x = 931,220.40

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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.