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Finding the Fourth Proportional to 587,315.30, 810,302.34 and 329,154.50

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Solution

The fourth proportional to 587,315.30, 810,302.34 and 329,154.50 is: 454,125.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,315.30 : 810,302.34 = 329,154.50 : x
  2. Step 2: Convert to fraction form
    587,315.30/810,302.34 = 329,154.50/x
  3. Step 3: Cross multiply
    587,315.30x = 810,302.34 × 329,154.50
  4. Step 4: Simplify right side
    587,315.30x = 266,714,661,571.53
  5. Step 5: Solve for x
    x = 266,714,661,571.53/587,315.30
  6. Step 6: Final answer
    x = 454,125.17

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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.