Home / 679,939.40-1,019,909.10-559,670.60

Finding the Fourth Proportional to 679,939.40, 1,019,909.10 and 559,670.60

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Solution

The fourth proportional to 679,939.40, 1,019,909.10 and 559,670.60 is: 839,505.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,939.40 : 1,019,909.10 = 559,670.60 : x
  2. Step 2: Convert to fraction form
    679,939.40/1,019,909.10 = 559,670.60/x
  3. Step 3: Cross multiply
    679,939.40x = 1,019,909.10 × 559,670.60
  4. Step 4: Simplify right side
    679,939.40x = 570,813,137,942.46
  5. Step 5: Solve for x
    x = 570,813,137,942.46/679,939.40
  6. Step 6: Final answer
    x = 839,505.90

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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.