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Finding the Fourth Proportional to 513,597.96, 768,897.90 and 299,710.44

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Solution

The fourth proportional to 513,597.96, 768,897.90 and 299,710.44 is: 448,690.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,597.96 : 768,897.90 = 299,710.44 : x
  2. Step 2: Convert to fraction form
    513,597.96/768,897.90 = 299,710.44/x
  3. Step 3: Cross multiply
    513,597.96x = 768,897.90 × 299,710.44
  4. Step 4: Simplify right side
    513,597.96x = 230,446,727,924.08
  5. Step 5: Solve for x
    x = 230,446,727,924.08/513,597.96
  6. Step 6: Final answer
    x = 448,690.89

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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.