Home / 668,422.10-1,003,617.30-518,831.30

Finding the Fourth Proportional to 668,422.10, 1,003,617.30 and 518,831.30

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Solution

The fourth proportional to 668,422.10, 1,003,617.30 and 518,831.30 is: 779,010.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,422.10 : 1,003,617.30 = 518,831.30 : x
  2. Step 2: Convert to fraction form
    668,422.10/1,003,617.30 = 518,831.30/x
  3. Step 3: Cross multiply
    668,422.10x = 1,003,617.30 × 518,831.30
  4. Step 4: Simplify right side
    668,422.10x = 520,708,068,461.49
  5. Step 5: Solve for x
    x = 520,708,068,461.49/668,422.10
  6. Step 6: Final answer
    x = 779,010.85

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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.