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Finding the Fourth Proportional to 540,344.19, 745,625.98 and 310,840.41

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Solution

The fourth proportional to 540,344.19, 745,625.98 and 310,840.41 is: 428,931.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,344.19 : 745,625.98 = 310,840.41 : x
  2. Step 2: Convert to fraction form
    540,344.19/745,625.98 = 310,840.41/x
  3. Step 3: Cross multiply
    540,344.19x = 745,625.98 × 310,840.41
  4. Step 4: Simplify right side
    540,344.19x = 231,770,685,329.85
  5. Step 5: Solve for x
    x = 231,770,685,329.85/540,344.19
  6. Step 6: Final answer
    x = 428,931.58

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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.