Home / 688,477.40-1,031,220.62-332,745.40

Finding the Fourth Proportional to 688,477.40, 1,031,220.62 and 332,745.40

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Solution

The fourth proportional to 688,477.40, 1,031,220.62 and 332,745.40 is: 498,395.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,477.40 : 1,031,220.62 = 332,745.40 : x
  2. Step 2: Convert to fraction form
    688,477.40/1,031,220.62 = 332,745.40/x
  3. Step 3: Cross multiply
    688,477.40x = 1,031,220.62 × 332,745.40
  4. Step 4: Simplify right side
    688,477.40x = 343,133,917,690.15
  5. Step 5: Solve for x
    x = 343,133,917,690.15/688,477.40
  6. Step 6: Final answer
    x = 498,395.33

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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.