Home / 1,209,730.20-1,813,817.70-500,040.60

Finding the Fourth Proportional to 1,209,730.20, 1,813,817.70 and 500,040.60

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Solution

The fourth proportional to 1,209,730.20, 1,813,817.70 and 500,040.60 is: 749,739.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,730.20 : 1,813,817.70 = 500,040.60 : x
  2. Step 2: Convert to fraction form
    1,209,730.20/1,813,817.70 = 500,040.60/x
  3. Step 3: Cross multiply
    1,209,730.20x = 1,813,817.70 × 500,040.60
  4. Step 4: Simplify right side
    1,209,730.20x = 906,982,490,998.62
  5. Step 5: Solve for x
    x = 906,982,490,998.62/1,209,730.20
  6. Step 6: Final answer
    x = 749,739.48

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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.