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Finding the Fourth Proportional to 636,698.84, 954,817.15 and 348,724.40

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Solution

The fourth proportional to 636,698.84, 954,817.15 and 348,724.40 is: 522,960.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,698.84 : 954,817.15 = 348,724.40 : x
  2. Step 2: Convert to fraction form
    636,698.84/954,817.15 = 348,724.40/x
  3. Step 3: Cross multiply
    636,698.84x = 954,817.15 × 348,724.40
  4. Step 4: Simplify right side
    636,698.84x = 332,968,031,225.75
  5. Step 5: Solve for x
    x = 332,968,031,225.75/636,698.84
  6. Step 6: Final answer
    x = 522,960.01

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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.