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Finding the Fourth Proportional to 540,283.88, 745,620.46 and 310,876.04

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Solution

The fourth proportional to 540,283.88, 745,620.46 and 310,876.04 is: 429,025.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,283.88 : 745,620.46 = 310,876.04 : x
  2. Step 2: Convert to fraction form
    540,283.88/745,620.46 = 310,876.04/x
  3. Step 3: Cross multiply
    540,283.88x = 745,620.46 × 310,876.04
  4. Step 4: Simplify right side
    540,283.88x = 231,795,535,947.78
  5. Step 5: Solve for x
    x = 231,795,535,947.78/540,283.88
  6. Step 6: Final answer
    x = 429,025.45

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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.