Home / 768,210.35-1,152,502.43-255,874.21

Finding the Fourth Proportional to 768,210.35, 1,152,502.43 and 255,874.21

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Solution

The fourth proportional to 768,210.35, 1,152,502.43 and 255,874.21 is: 383,873.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,210.35 : 1,152,502.43 = 255,874.21 : x
  2. Step 2: Convert to fraction form
    768,210.35/1,152,502.43 = 255,874.21/x
  3. Step 3: Cross multiply
    768,210.35x = 1,152,502.43 × 255,874.21
  4. Step 4: Simplify right side
    768,210.35x = 294,895,644,638.70
  5. Step 5: Solve for x
    x = 294,895,644,638.70/768,210.35
  6. Step 6: Final answer
    x = 383,873.57

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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.