Home / 420,738.08-584,538.20-415,693.52

Finding the Fourth Proportional to 420,738.08, 584,538.20 and 415,693.52

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Solution

The fourth proportional to 420,738.08, 584,538.20 and 415,693.52 is: 577,529.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,738.08 : 584,538.20 = 415,693.52 : x
  2. Step 2: Convert to fraction form
    420,738.08/584,538.20 = 415,693.52/x
  3. Step 3: Cross multiply
    420,738.08x = 584,538.20 × 415,693.52
  4. Step 4: Simplify right side
    420,738.08x = 242,988,741,932.46
  5. Step 5: Solve for x
    x = 242,988,741,932.46/420,738.08
  6. Step 6: Final answer
    x = 577,529.71

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1.5x scale

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.