Home / 639,490.24-882,502.68-353,004.16

Finding the Fourth Proportional to 639,490.24, 882,502.68 and 353,004.16

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Solution

The fourth proportional to 639,490.24, 882,502.68 and 353,004.16 is: 487,149.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,490.24 : 882,502.68 = 353,004.16 : x
  2. Step 2: Convert to fraction form
    639,490.24/882,502.68 = 353,004.16/x
  3. Step 3: Cross multiply
    639,490.24x = 882,502.68 × 353,004.16
  4. Step 4: Simplify right side
    639,490.24x = 311,527,117,251.15
  5. Step 5: Solve for x
    x = 311,527,117,251.15/639,490.24
  6. Step 6: Final answer
    x = 487,149.13

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1.5x scale

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.