Home / 919,279.52-1,378,919.26-288,244.16

Finding the Fourth Proportional to 919,279.52, 1,378,919.26 and 288,244.16

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Solution

The fourth proportional to 919,279.52, 1,378,919.26 and 288,244.16 is: 432,366.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,279.52 : 1,378,919.26 = 288,244.16 : x
  2. Step 2: Convert to fraction form
    919,279.52/1,378,919.26 = 288,244.16/x
  3. Step 3: Cross multiply
    919,279.52x = 1,378,919.26 × 288,244.16
  4. Step 4: Simplify right side
    919,279.52x = 397,465,423,806.52
  5. Step 5: Solve for x
    x = 397,465,423,806.52/919,279.52
  6. Step 6: Final answer
    x = 432,366.23

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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.