Home / 726,809.60-1,088,140.80-446,873.60

Finding the Fourth Proportional to 726,809.60, 1,088,140.80 and 446,873.60

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Solution

The fourth proportional to 726,809.60, 1,088,140.80 and 446,873.60 is: 669,035.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,809.60 : 1,088,140.80 = 446,873.60 : x
  2. Step 2: Convert to fraction form
    726,809.60/1,088,140.80 = 446,873.60/x
  3. Step 3: Cross multiply
    726,809.60x = 1,088,140.80 × 446,873.60
  4. Step 4: Simplify right side
    726,809.60x = 486,261,396,602.88
  5. Step 5: Solve for x
    x = 486,261,396,602.88/726,809.60
  6. Step 6: Final answer
    x = 669,035.46

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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.