Home / 712,584.26-983,367.48-385,900.72

Finding the Fourth Proportional to 712,584.26, 983,367.48 and 385,900.72

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Solution

The fourth proportional to 712,584.26, 983,367.48 and 385,900.72 is: 532,543.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,584.26 : 983,367.48 = 385,900.72 : x
  2. Step 2: Convert to fraction form
    712,584.26/983,367.48 = 385,900.72/x
  3. Step 3: Cross multiply
    712,584.26x = 983,367.48 × 385,900.72
  4. Step 4: Simplify right side
    712,584.26x = 379,482,218,556.59
  5. Step 5: Solve for x
    x = 379,482,218,556.59/712,584.26
  6. Step 6: Final answer
    x = 532,543.64

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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.