Home / 484,619.60-726,929.40-307,326.80

Finding the Fourth Proportional to 484,619.60, 726,929.40 and 307,326.80

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Solution

The fourth proportional to 484,619.60, 726,929.40 and 307,326.80 is: 460,990.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,619.60 : 726,929.40 = 307,326.80 : x
  2. Step 2: Convert to fraction form
    484,619.60/726,929.40 = 307,326.80/x
  3. Step 3: Cross multiply
    484,619.60x = 726,929.40 × 307,326.80
  4. Step 4: Simplify right side
    484,619.60x = 223,404,886,327.92
  5. Step 5: Solve for x
    x = 223,404,886,327.92/484,619.60
  6. Step 6: Final answer
    x = 460,990.20

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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.