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Finding the Fourth Proportional to 636,012.41, 877,697.78 and 349,526.34

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Solution

The fourth proportional to 636,012.41, 877,697.78 and 349,526.34 is: 482,346.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,012.41 : 877,697.78 = 349,526.34 : x
  2. Step 2: Convert to fraction form
    636,012.41/877,697.78 = 349,526.34/x
  3. Step 3: Cross multiply
    636,012.41x = 877,697.78 × 349,526.34
  4. Step 4: Simplify right side
    636,012.41x = 306,778,490,921.89
  5. Step 5: Solve for x
    x = 306,778,490,921.89/636,012.41
  6. Step 6: Final answer
    x = 482,346.71

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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.