Home / 804,500.40-1,206,750.60-521,065.20

Finding the Fourth Proportional to 804,500.40, 1,206,750.60 and 521,065.20

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Solution

The fourth proportional to 804,500.40, 1,206,750.60 and 521,065.20 is: 781,597.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,500.40 : 1,206,750.60 = 521,065.20 : x
  2. Step 2: Convert to fraction form
    804,500.40/1,206,750.60 = 521,065.20/x
  3. Step 3: Cross multiply
    804,500.40x = 1,206,750.60 × 521,065.20
  4. Step 4: Simplify right side
    804,500.40x = 628,795,742,739.12
  5. Step 5: Solve for x
    x = 628,795,742,739.12/804,500.40
  6. Step 6: Final answer
    x = 781,597.80

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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.