Home / 673,286.40-1,009,929.60-668,620.80

Finding the Fourth Proportional to 673,286.40, 1,009,929.60 and 668,620.80

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Solution

The fourth proportional to 673,286.40, 1,009,929.60 and 668,620.80 is: 1,002,931.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,286.40 : 1,009,929.60 = 668,620.80 : x
  2. Step 2: Convert to fraction form
    673,286.40/1,009,929.60 = 668,620.80/x
  3. Step 3: Cross multiply
    673,286.40x = 1,009,929.60 × 668,620.80
  4. Step 4: Simplify right side
    673,286.40x = 675,259,937,095.68
  5. Step 5: Solve for x
    x = 675,259,937,095.68/673,286.40
  6. Step 6: Final answer
    x = 1,002,931.20

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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.