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Finding the Fourth Proportional to 557,450.16, 769,280.60 and 302,799.56

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Solution

The fourth proportional to 557,450.16, 769,280.60 and 302,799.56 is: 417,863.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,450.16 : 769,280.60 = 302,799.56 : x
  2. Step 2: Convert to fraction form
    557,450.16/769,280.60 = 302,799.56/x
  3. Step 3: Cross multiply
    557,450.16x = 769,280.60 × 302,799.56
  4. Step 4: Simplify right side
    557,450.16x = 232,937,827,196.54
  5. Step 5: Solve for x
    x = 232,937,827,196.54/557,450.16
  6. Step 6: Final answer
    x = 417,863.06

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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.