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Finding the Fourth Proportional to 557,892.60, 769,897.26 and 303,243.63

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Solution

The fourth proportional to 557,892.60, 769,897.26 and 303,243.63 is: 418,479.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,892.60 : 769,897.26 = 303,243.63 : x
  2. Step 2: Convert to fraction form
    557,892.60/769,897.26 = 303,243.63/x
  3. Step 3: Cross multiply
    557,892.60x = 769,897.26 × 303,243.63
  4. Step 4: Simplify right side
    557,892.60x = 233,466,439,849.45
  5. Step 5: Solve for x
    x = 233,466,439,849.45/557,892.60
  6. Step 6: Final answer
    x = 418,479.18

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Double scale
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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.