Home / 448,785.34-621,943.93-440,269.42

Finding the Fourth Proportional to 448,785.34, 621,943.93 and 440,269.42

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Solution

The fourth proportional to 448,785.34, 621,943.93 and 440,269.42 is: 610,142.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,785.34 : 621,943.93 = 440,269.42 : x
  2. Step 2: Convert to fraction form
    448,785.34/621,943.93 = 440,269.42/x
  3. Step 3: Cross multiply
    448,785.34x = 621,943.93 × 440,269.42
  4. Step 4: Simplify right side
    448,785.34x = 273,822,893,333.62
  5. Step 5: Solve for x
    x = 273,822,893,333.62/448,785.34
  6. Step 6: Final answer
    x = 610,142.24

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.