Home / 692,680.80-1,039,080.36-243,362.64

Finding the Fourth Proportional to 692,680.80, 1,039,080.36 and 243,362.64

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Solution

The fourth proportional to 692,680.80, 1,039,080.36 and 243,362.64 is: 365,064.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,680.80 : 1,039,080.36 = 243,362.64 : x
  2. Step 2: Convert to fraction form
    692,680.80/1,039,080.36 = 243,362.64/x
  3. Step 3: Cross multiply
    692,680.80x = 1,039,080.36 × 243,362.64
  4. Step 4: Simplify right side
    692,680.80x = 252,873,339,581.75
  5. Step 5: Solve for x
    x = 252,873,339,581.75/692,680.80
  6. Step 6: Final answer
    x = 365,064.74

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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.