Home / 668,859.20-1,003,288.80-314,565.20

Finding the Fourth Proportional to 668,859.20, 1,003,288.80 and 314,565.20

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Solution

The fourth proportional to 668,859.20, 1,003,288.80 and 314,565.20 is: 471,847.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,859.20 : 1,003,288.80 = 314,565.20 : x
  2. Step 2: Convert to fraction form
    668,859.20/1,003,288.80 = 314,565.20/x
  3. Step 3: Cross multiply
    668,859.20x = 1,003,288.80 × 314,565.20
  4. Step 4: Simplify right side
    668,859.20x = 315,599,742,029.76
  5. Step 5: Solve for x
    x = 315,599,742,029.76/668,859.20
  6. Step 6: Final answer
    x = 471,847.80

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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.