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Finding the Fourth Proportional to 539,607.69, 744,659.72 and 297,890.60

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Solution

The fourth proportional to 539,607.69, 744,659.72 and 297,890.60 is: 411,089.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,607.69 : 744,659.72 = 297,890.60 : x
  2. Step 2: Convert to fraction form
    539,607.69/744,659.72 = 297,890.60/x
  3. Step 3: Cross multiply
    539,607.69x = 744,659.72 × 297,890.60
  4. Step 4: Simplify right side
    539,607.69x = 221,827,125,573.88
  5. Step 5: Solve for x
    x = 221,827,125,573.88/539,607.69
  6. Step 6: Final answer
    x = 411,089.63

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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.