Home / 768,553.40-1,152,827.66-207,587.90

Finding the Fourth Proportional to 768,553.40, 1,152,827.66 and 207,587.90

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Solution

The fourth proportional to 768,553.40, 1,152,827.66 and 207,587.90 is: 311,381.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,553.40 : 1,152,827.66 = 207,587.90 : x
  2. Step 2: Convert to fraction form
    768,553.40/1,152,827.66 = 207,587.90/x
  3. Step 3: Cross multiply
    768,553.40x = 1,152,827.66 × 207,587.90
  4. Step 4: Simplify right side
    768,553.40x = 239,313,066,199.24
  5. Step 5: Solve for x
    x = 239,313,066,199.24/768,553.40
  6. Step 6: Final answer
    x = 311,381.18

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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.