Home / 1,100,420.24-1,518,216.92-664,674.76

Finding the Fourth Proportional to 1,100,420.24, 1,518,216.92 and 664,674.76

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Solution

The fourth proportional to 1,100,420.24, 1,518,216.92 and 664,674.76 is: 917,031.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,420.24 : 1,518,216.92 = 664,674.76 : x
  2. Step 2: Convert to fraction form
    1,100,420.24/1,518,216.92 = 664,674.76/x
  3. Step 3: Cross multiply
    1,100,420.24x = 1,518,216.92 × 664,674.76
  4. Step 4: Simplify right side
    1,100,420.24x = 1,009,120,467,995.87
  5. Step 5: Solve for x
    x = 1,009,120,467,995.87/1,100,420.24
  6. Step 6: Final answer
    x = 917,031.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.