Home / 420,717.60-584,509.67-415,673.06

Finding the Fourth Proportional to 420,717.60, 584,509.67 and 415,673.06

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Solution

The fourth proportional to 420,717.60, 584,509.67 and 415,673.06 is: 577,501.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,717.60 : 584,509.67 = 415,673.06 : x
  2. Step 2: Convert to fraction form
    420,717.60/584,509.67 = 415,673.06/x
  3. Step 3: Cross multiply
    420,717.60x = 584,509.67 × 415,673.06
  4. Step 4: Simplify right side
    420,717.60x = 242,964,923,128.49
  5. Step 5: Solve for x
    x = 242,964,923,128.49/420,717.60
  6. Step 6: Final answer
    x = 577,501.21

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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.