Home / 668,429.10-1,003,627.80-518,838.30

Finding the Fourth Proportional to 668,429.10, 1,003,627.80 and 518,838.30

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Solution

The fourth proportional to 668,429.10, 1,003,627.80 and 518,838.30 is: 779,021.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,429.10 : 1,003,627.80 = 518,838.30 : x
  2. Step 2: Convert to fraction form
    668,429.10/1,003,627.80 = 518,838.30/x
  3. Step 3: Cross multiply
    668,429.10x = 1,003,627.80 × 518,838.30
  4. Step 4: Simplify right side
    668,429.10x = 520,720,541,584.74
  5. Step 5: Solve for x
    x = 520,720,541,584.74/668,429.10
  6. Step 6: Final answer
    x = 779,021.35

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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.