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Finding the Fourth Proportional to 636,200.93, 877,958.23 and 349,722.76

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Solution

The fourth proportional to 636,200.93, 877,958.23 and 349,722.76 is: 482,617.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,200.93 : 877,958.23 = 349,722.76 : x
  2. Step 2: Convert to fraction form
    636,200.93/877,958.23 = 349,722.76/x
  3. Step 3: Cross multiply
    636,200.93x = 877,958.23 × 349,722.76
  4. Step 4: Simplify right side
    636,200.93x = 307,041,975,360.32
  5. Step 5: Solve for x
    x = 307,041,975,360.32/636,200.93
  6. Step 6: Final answer
    x = 482,617.93

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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.