Home / 919,282.28-1,378,923.69-288,245.30

Finding the Fourth Proportional to 919,282.28, 1,378,923.69 and 288,245.30

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Solution

The fourth proportional to 919,282.28, 1,378,923.69 and 288,245.30 is: 432,368.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,282.28 : 1,378,923.69 = 288,245.30 : x
  2. Step 2: Convert to fraction form
    919,282.28/1,378,923.69 = 288,245.30/x
  3. Step 3: Cross multiply
    919,282.28x = 1,378,923.69 × 288,245.30
  4. Step 4: Simplify right side
    919,282.28x = 397,468,272,701.16
  5. Step 5: Solve for x
    x = 397,468,272,701.16/919,282.28
  6. Step 6: Final answer
    x = 432,368.03

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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.