Home / 688,245.34-949,930.36-382,426.80

Finding the Fourth Proportional to 688,245.34, 949,930.36 and 382,426.80

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Solution

The fourth proportional to 688,245.34, 949,930.36 and 382,426.80 is: 527,833.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,245.34 : 949,930.36 = 382,426.80 : x
  2. Step 2: Convert to fraction form
    688,245.34/949,930.36 = 382,426.80/x
  3. Step 3: Cross multiply
    688,245.34x = 949,930.36 × 382,426.80
  4. Step 4: Simplify right side
    688,245.34x = 363,278,827,797.65
  5. Step 5: Solve for x
    x = 363,278,827,797.65/688,245.34
  6. Step 6: Final answer
    x = 527,833.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.