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Finding the Fourth Proportional to 488,636.85, 729,613.04 and 437,707.09

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Solution

The fourth proportional to 488,636.85, 729,613.04 and 437,707.09 is: 653,566.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,636.85 : 729,613.04 = 437,707.09 : x
  2. Step 2: Convert to fraction form
    488,636.85/729,613.04 = 437,707.09/x
  3. Step 3: Cross multiply
    488,636.85x = 729,613.04 × 437,707.09
  4. Step 4: Simplify right side
    488,636.85x = 319,356,802,981.09
  5. Step 5: Solve for x
    x = 319,356,802,981.09/488,636.85
  6. Step 6: Final answer
    x = 653,566.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.