Home / 787,603.70-1,181,405.55-519,914.90

Finding the Fourth Proportional to 787,603.70, 1,181,405.55 and 519,914.90

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Solution

The fourth proportional to 787,603.70, 1,181,405.55 and 519,914.90 is: 779,872.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,603.70 : 1,181,405.55 = 519,914.90 : x
  2. Step 2: Convert to fraction form
    787,603.70/1,181,405.55 = 519,914.90/x
  3. Step 3: Cross multiply
    787,603.70x = 1,181,405.55 × 519,914.90
  4. Step 4: Simplify right side
    787,603.70x = 614,230,348,387.70
  5. Step 5: Solve for x
    x = 614,230,348,387.70/787,603.70
  6. Step 6: Final answer
    x = 779,872.35

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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.