Home / 380,735.10-571,102.65-348,075.90

Finding the Fourth Proportional to 380,735.10, 571,102.65 and 348,075.90

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Solution

The fourth proportional to 380,735.10, 571,102.65 and 348,075.90 is: 522,113.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,735.10 : 571,102.65 = 348,075.90 : x
  2. Step 2: Convert to fraction form
    380,735.10/571,102.65 = 348,075.90/x
  3. Step 3: Cross multiply
    380,735.10x = 571,102.65 × 348,075.90
  4. Step 4: Simplify right side
    380,735.10x = 198,787,068,891.14
  5. Step 5: Solve for x
    x = 198,787,068,891.14/380,735.10
  6. Step 6: Final answer
    x = 522,113.85

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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.