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Finding the Fourth Proportional to 546,090.30, 819,135.45 and 309,894.30

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Solution

The fourth proportional to 546,090.30, 819,135.45 and 309,894.30 is: 464,841.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,090.30 : 819,135.45 = 309,894.30 : x
  2. Step 2: Convert to fraction form
    546,090.30/819,135.45 = 309,894.30/x
  3. Step 3: Cross multiply
    546,090.30x = 819,135.45 × 309,894.30
  4. Step 4: Simplify right side
    546,090.30x = 253,845,406,882.94
  5. Step 5: Solve for x
    x = 253,845,406,882.94/546,090.30
  6. Step 6: Final answer
    x = 464,841.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.