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Finding the Fourth Proportional to 557,449.46, 769,281.02 and 302,800.66

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Solution

The fourth proportional to 557,449.46, 769,281.02 and 302,800.66 is: 417,865.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,449.46 : 769,281.02 = 302,800.66 : x
  2. Step 2: Convert to fraction form
    557,449.46/769,281.02 = 302,800.66/x
  3. Step 3: Cross multiply
    557,449.46x = 769,281.02 × 302,800.66
  4. Step 4: Simplify right side
    557,449.46x = 232,938,800,581.47
  5. Step 5: Solve for x
    x = 232,938,800,581.47/557,449.46
  6. Step 6: Final answer
    x = 417,865.33

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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.