Home / 668,867.20-1,003,300.80-313,917.10

Finding the Fourth Proportional to 668,867.20, 1,003,300.80 and 313,917.10

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Solution

The fourth proportional to 668,867.20, 1,003,300.80 and 313,917.10 is: 470,875.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,867.20 : 1,003,300.80 = 313,917.10 : x
  2. Step 2: Convert to fraction form
    668,867.20/1,003,300.80 = 313,917.10/x
  3. Step 3: Cross multiply
    668,867.20x = 1,003,300.80 × 313,917.10
  4. Step 4: Simplify right side
    668,867.20x = 314,953,277,563.68
  5. Step 5: Solve for x
    x = 314,953,277,563.68/668,867.20
  6. Step 6: Final answer
    x = 470,875.65

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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.