Home / 447,021.59-616,881-243,070.77

Finding the Fourth Proportional to 447,021.59, 616,881 and 243,070.77

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Solution

The fourth proportional to 447,021.59, 616,881 and 243,070.77 is: 335,432.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,021.59 : 616,881 = 243,070.77 : x
  2. Step 2: Convert to fraction form
    447,021.59/616,881 = 243,070.77/x
  3. Step 3: Cross multiply
    447,021.59x = 616,881 × 243,070.77
  4. Step 4: Simplify right side
    447,021.59x = 149,945,739,668.37
  5. Step 5: Solve for x
    x = 149,945,739,668.37/447,021.59
  6. Step 6: Final answer
    x = 335,432.88

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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.