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Finding the Fourth Proportional to 557,354.67, 769,145.13 and 302,705.88

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Solution

The fourth proportional to 557,354.67, 769,145.13 and 302,705.88 is: 417,731.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,354.67 : 769,145.13 = 302,705.88 : x
  2. Step 2: Convert to fraction form
    557,354.67/769,145.13 = 302,705.88/x
  3. Step 3: Cross multiply
    557,354.67x = 769,145.13 × 302,705.88
  4. Step 4: Simplify right side
    557,354.67x = 232,824,753,424.36
  5. Step 5: Solve for x
    x = 232,824,753,424.36/557,354.67
  6. Step 6: Final answer
    x = 417,731.77

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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.