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Finding the Fourth Proportional to 636,470.84, 878,328.69 and 364,626.74

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Solution

The fourth proportional to 636,470.84, 878,328.69 and 364,626.74 is: 503,184.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,470.84 : 878,328.69 = 364,626.74 : x
  2. Step 2: Convert to fraction form
    636,470.84/878,328.69 = 364,626.74/x
  3. Step 3: Cross multiply
    636,470.84x = 878,328.69 × 364,626.74
  4. Step 4: Simplify right side
    636,470.84x = 320,262,126,883.17
  5. Step 5: Solve for x
    x = 320,262,126,883.17/636,470.84
  6. Step 6: Final answer
    x = 503,184.29

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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.