Home / 674,319.36-1,011,976.74-319,332.72

Finding the Fourth Proportional to 674,319.36, 1,011,976.74 and 319,332.72

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Solution

The fourth proportional to 674,319.36, 1,011,976.74 and 319,332.72 is: 479,234.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,319.36 : 1,011,976.74 = 319,332.72 : x
  2. Step 2: Convert to fraction form
    674,319.36/1,011,976.74 = 319,332.72/x
  3. Step 3: Cross multiply
    674,319.36x = 1,011,976.74 × 319,332.72
  4. Step 4: Simplify right side
    674,319.36x = 323,157,284,960.93
  5. Step 5: Solve for x
    x = 323,157,284,960.93/674,319.36
  6. Step 6: Final answer
    x = 479,234.77

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1.5x scale

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.