Home / 1,139,735.20-1,709,602.80-474,800.80

Finding the Fourth Proportional to 1,139,735.20, 1,709,602.80 and 474,800.80

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Solution

The fourth proportional to 1,139,735.20, 1,709,602.80 and 474,800.80 is: 712,201.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,735.20 : 1,709,602.80 = 474,800.80 : x
  2. Step 2: Convert to fraction form
    1,139,735.20/1,709,602.80 = 474,800.80/x
  3. Step 3: Cross multiply
    1,139,735.20x = 1,709,602.80 × 474,800.80
  4. Step 4: Simplify right side
    1,139,735.20x = 811,720,777,122.24
  5. Step 5: Solve for x
    x = 811,720,777,122.24/1,139,735.20
  6. Step 6: Final answer
    x = 712,201.20

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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.