Home / 463,905.58-640,178.85-272,931.26

Finding the Fourth Proportional to 463,905.58, 640,178.85 and 272,931.26

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Solution

The fourth proportional to 463,905.58, 640,178.85 and 272,931.26 is: 376,638.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,905.58 : 640,178.85 = 272,931.26 : x
  2. Step 2: Convert to fraction form
    463,905.58/640,178.85 = 272,931.26/x
  3. Step 3: Cross multiply
    463,905.58x = 640,178.85 × 272,931.26
  4. Step 4: Simplify right side
    463,905.58x = 174,724,820,155.85
  5. Step 5: Solve for x
    x = 174,724,820,155.85/463,905.58
  6. Step 6: Final answer
    x = 376,638.76

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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.