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Finding the Fourth Proportional to 557,715.58, 769,646.01 and 303,066.82

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Solution

The fourth proportional to 557,715.58, 769,646.01 and 303,066.82 is: 418,231.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,715.58 : 769,646.01 = 303,066.82 : x
  2. Step 2: Convert to fraction form
    557,715.58/769,646.01 = 303,066.82/x
  3. Step 3: Cross multiply
    557,715.58x = 769,646.01 × 303,066.82
  4. Step 4: Simplify right side
    557,715.58x = 233,254,168,776.39
  5. Step 5: Solve for x
    x = 233,254,168,776.39/557,715.58
  6. Step 6: Final answer
    x = 418,231.40

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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.