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Finding the Fourth Proportional to 539,698.68, 744,635.16 and 310,244.04

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Solution

The fourth proportional to 539,698.68, 744,635.16 and 310,244.04 is: 428,051.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,698.68 : 744,635.16 = 310,244.04 : x
  2. Step 2: Convert to fraction form
    539,698.68/744,635.16 = 310,244.04/x
  3. Step 3: Cross multiply
    539,698.68x = 744,635.16 × 310,244.04
  4. Step 4: Simplify right side
    539,698.68x = 231,018,620,364.45
  5. Step 5: Solve for x
    x = 231,018,620,364.45/539,698.68
  6. Step 6: Final answer
    x = 428,051.11

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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.