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Finding the Fourth Proportional to 557,393.36, 769,205.04 and 302,748.80

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Solution

The fourth proportional to 557,393.36, 769,205.04 and 302,748.80 is: 417,794.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,393.36 : 769,205.04 = 302,748.80 : x
  2. Step 2: Convert to fraction form
    557,393.36/769,205.04 = 302,748.80/x
  3. Step 3: Cross multiply
    557,393.36x = 769,205.04 × 302,748.80
  4. Step 4: Simplify right side
    557,393.36x = 232,875,902,813.95
  5. Step 5: Solve for x
    x = 232,875,902,813.95/557,393.36
  6. Step 6: Final answer
    x = 417,794.54

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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.