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Finding the Fourth Proportional to 557,333.20, 769,124.33 and 302,686.21

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Solution

The fourth proportional to 557,333.20, 769,124.33 and 302,686.21 is: 417,709.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,333.20 : 769,124.33 = 302,686.21 : x
  2. Step 2: Convert to fraction form
    557,333.20/769,124.33 = 302,686.21/x
  3. Step 3: Cross multiply
    557,333.20x = 769,124.33 × 302,686.21
  4. Step 4: Simplify right side
    557,333.20x = 232,803,328,466.49
  5. Step 5: Solve for x
    x = 232,803,328,466.49/557,333.20
  6. Step 6: Final answer
    x = 417,709.42

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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.