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Finding the Fourth Proportional to 506,607.20, 699,712.80 and 404,984.60

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Solution

The fourth proportional to 506,607.20, 699,712.80 and 404,984.60 is: 559,354.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,607.20 : 699,712.80 = 404,984.60 : x
  2. Step 2: Convert to fraction form
    506,607.20/699,712.80 = 404,984.60/x
  3. Step 3: Cross multiply
    506,607.20x = 699,712.80 × 404,984.60
  4. Step 4: Simplify right side
    506,607.20x = 283,372,908,422.88
  5. Step 5: Solve for x
    x = 283,372,908,422.88/506,607.20
  6. Step 6: Final answer
    x = 559,354.29

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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.