Home / 578,821.21-868,528.13-275,558.43

Finding the Fourth Proportional to 578,821.21, 868,528.13 and 275,558.43

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Solution

The fourth proportional to 578,821.21, 868,528.13 and 275,558.43 is: 413,478.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,821.21 : 868,528.13 = 275,558.43 : x
  2. Step 2: Convert to fraction form
    578,821.21/868,528.13 = 275,558.43/x
  3. Step 3: Cross multiply
    578,821.21x = 868,528.13 × 275,558.43
  4. Step 4: Simplify right side
    578,821.21x = 239,330,243,278.86
  5. Step 5: Solve for x
    x = 239,330,243,278.86/578,821.21
  6. Step 6: Final answer
    x = 413,478.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.