Home / 499,565.11-689,417.39-284,670.49

Finding the Fourth Proportional to 499,565.11, 689,417.39 and 284,670.49

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Solution

The fourth proportional to 499,565.11, 689,417.39 and 284,670.49 is: 392,855.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,565.11 : 689,417.39 = 284,670.49 : x
  2. Step 2: Convert to fraction form
    499,565.11/689,417.39 = 284,670.49/x
  3. Step 3: Cross multiply
    499,565.11x = 689,417.39 × 284,670.49
  4. Step 4: Simplify right side
    499,565.11x = 196,256,786,225.82
  5. Step 5: Solve for x
    x = 196,256,786,225.82/499,565.11
  6. Step 6: Final answer
    x = 392,855.27

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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.