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Finding the Fourth Proportional to 636,167.36, 877,911.72 and 349,681.34

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Solution

The fourth proportional to 636,167.36, 877,911.72 and 349,681.34 is: 482,560.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,167.36 : 877,911.72 = 349,681.34 : x
  2. Step 2: Convert to fraction form
    636,167.36/877,911.72 = 349,681.34/x
  3. Step 3: Cross multiply
    636,167.36x = 877,911.72 × 349,681.34
  4. Step 4: Simplify right side
    636,167.36x = 306,989,346,651.31
  5. Step 5: Solve for x
    x = 306,989,346,651.31/636,167.36
  6. Step 6: Final answer
    x = 482,560.67

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1.5x scale

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.