Home / 692,145.20-1,038,023.40-218,975.60

Finding the Fourth Proportional to 692,145.20, 1,038,023.40 and 218,975.60

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Solution

The fourth proportional to 692,145.20, 1,038,023.40 and 218,975.60 is: 328,401.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,145.20 : 1,038,023.40 = 218,975.60 : x
  2. Step 2: Convert to fraction form
    692,145.20/1,038,023.40 = 218,975.60/x
  3. Step 3: Cross multiply
    692,145.20x = 1,038,023.40 × 218,975.60
  4. Step 4: Simplify right side
    692,145.20x = 227,301,796,829.04
  5. Step 5: Solve for x
    x = 227,301,796,829.04/692,145.20
  6. Step 6: Final answer
    x = 328,401.90

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1.5x scale

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.