Home / 753,544.60-1,130,187.30-279,986.20

Finding the Fourth Proportional to 753,544.60, 1,130,187.30 and 279,986.20

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Solution

The fourth proportional to 753,544.60, 1,130,187.30 and 279,986.20 is: 419,931.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,544.60 : 1,130,187.30 = 279,986.20 : x
  2. Step 2: Convert to fraction form
    753,544.60/1,130,187.30 = 279,986.20/x
  3. Step 3: Cross multiply
    753,544.60x = 1,130,187.30 × 279,986.20
  4. Step 4: Simplify right side
    753,544.60x = 316,436,847,415.26
  5. Step 5: Solve for x
    x = 316,436,847,415.26/753,544.60
  6. Step 6: Final answer
    x = 419,931.15

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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.