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Finding the Fourth Proportional to 557,327.66, 769,121.08 and 302,678.84

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Solution

The fourth proportional to 557,327.66, 769,121.08 and 302,678.84 is: 417,701.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,327.66 : 769,121.08 = 302,678.84 : x
  2. Step 2: Convert to fraction form
    557,327.66/769,121.08 = 302,678.84/x
  3. Step 3: Cross multiply
    557,327.66x = 769,121.08 × 302,678.84
  4. Step 4: Simplify right side
    557,327.66x = 232,796,676,313.95
  5. Step 5: Solve for x
    x = 232,796,676,313.95/557,327.66
  6. Step 6: Final answer
    x = 417,701.64

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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.