Home / 698,727.20-1,048,090.80-512,103.20

Finding the Fourth Proportional to 698,727.20, 1,048,090.80 and 512,103.20

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Solution

The fourth proportional to 698,727.20, 1,048,090.80 and 512,103.20 is: 768,154.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,727.20 : 1,048,090.80 = 512,103.20 : x
  2. Step 2: Convert to fraction form
    698,727.20/1,048,090.80 = 512,103.20/x
  3. Step 3: Cross multiply
    698,727.20x = 1,048,090.80 × 512,103.20
  4. Step 4: Simplify right side
    698,727.20x = 536,730,652,570.56
  5. Step 5: Solve for x
    x = 536,730,652,570.56/698,727.20
  6. Step 6: Final answer
    x = 768,154.80

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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.