Home / 939,417.28-1,409,282.40-308,161.60

Finding the Fourth Proportional to 939,417.28, 1,409,282.40 and 308,161.60

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Solution

The fourth proportional to 939,417.28, 1,409,282.40 and 308,161.60 is: 462,293.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,417.28 : 1,409,282.40 = 308,161.60 : x
  2. Step 2: Convert to fraction form
    939,417.28/1,409,282.40 = 308,161.60/x
  3. Step 3: Cross multiply
    939,417.28x = 1,409,282.40 × 308,161.60
  4. Step 4: Simplify right side
    939,417.28x = 434,286,719,235.84
  5. Step 5: Solve for x
    x = 434,286,719,235.84/939,417.28
  6. Step 6: Final answer
    x = 462,293.73

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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.