Home / 692,139.20-1,038,403.20-337,164.80

Finding the Fourth Proportional to 692,139.20, 1,038,403.20 and 337,164.80

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Solution

The fourth proportional to 692,139.20, 1,038,403.20 and 337,164.80 is: 505,841.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,139.20 : 1,038,403.20 = 337,164.80 : x
  2. Step 2: Convert to fraction form
    692,139.20/1,038,403.20 = 337,164.80/x
  3. Step 3: Cross multiply
    692,139.20x = 1,038,403.20 × 337,164.80
  4. Step 4: Simplify right side
    692,139.20x = 350,113,007,247.36
  5. Step 5: Solve for x
    x = 350,113,007,247.36/692,139.20
  6. Step 6: Final answer
    x = 505,841.90

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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.