Home / 668,114.60-1,002,171.90-518,815.40

Finding the Fourth Proportional to 668,114.60, 1,002,171.90 and 518,815.40

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Solution

The fourth proportional to 668,114.60, 1,002,171.90 and 518,815.40 is: 778,223.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,114.60 : 1,002,171.90 = 518,815.40 : x
  2. Step 2: Convert to fraction form
    668,114.60/1,002,171.90 = 518,815.40/x
  3. Step 3: Cross multiply
    668,114.60x = 1,002,171.90 × 518,815.40
  4. Step 4: Simplify right side
    668,114.60x = 519,942,215,167.26
  5. Step 5: Solve for x
    x = 519,942,215,167.26/668,114.60
  6. Step 6: Final answer
    x = 778,223.10

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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.