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Finding the Fourth Proportional to 539,728.98, 744,829.60 and 294,715.45

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Solution

The fourth proportional to 539,728.98, 744,829.60 and 294,715.45 is: 406,709.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,728.98 : 744,829.60 = 294,715.45 : x
  2. Step 2: Convert to fraction form
    539,728.98/744,829.60 = 294,715.45/x
  3. Step 3: Cross multiply
    539,728.98x = 744,829.60 × 294,715.45
  4. Step 4: Simplify right side
    539,728.98x = 219,512,787,497.49
  5. Step 5: Solve for x
    x = 219,512,787,497.49/539,728.98
  6. Step 6: Final answer
    x = 406,709.28

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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.