Home / 864,635.41-1,297,744.13-438,465.35

Finding the Fourth Proportional to 864,635.41, 1,297,744.13 and 438,465.35

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Solution

The fourth proportional to 864,635.41, 1,297,744.13 and 438,465.35 is: 658,099.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,635.41 : 1,297,744.13 = 438,465.35 : x
  2. Step 2: Convert to fraction form
    864,635.41/1,297,744.13 = 438,465.35/x
  3. Step 3: Cross multiply
    864,635.41x = 1,297,744.13 × 438,465.35
  4. Step 4: Simplify right side
    864,635.41x = 569,015,838,511.42
  5. Step 5: Solve for x
    x = 569,015,838,511.42/864,635.41
  6. Step 6: Final answer
    x = 658,099.16

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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.