Home / 572,123.20-789,486.24-330,295.36

Finding the Fourth Proportional to 572,123.20, 789,486.24 and 330,295.36

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Solution

The fourth proportional to 572,123.20, 789,486.24 and 330,295.36 is: 455,782.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,123.20 : 789,486.24 = 330,295.36 : x
  2. Step 2: Convert to fraction form
    572,123.20/789,486.24 = 330,295.36/x
  3. Step 3: Cross multiply
    572,123.20x = 789,486.24 × 330,295.36
  4. Step 4: Simplify right side
    572,123.20x = 260,763,641,855.85
  5. Step 5: Solve for x
    x = 260,763,641,855.85/572,123.20
  6. Step 6: Final answer
    x = 455,782.32

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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.