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Finding the Fourth Proportional to 488,421.40, 732,632.10 and 338,830.60

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Solution

The fourth proportional to 488,421.40, 732,632.10 and 338,830.60 is: 508,245.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,421.40 : 732,632.10 = 338,830.60 : x
  2. Step 2: Convert to fraction form
    488,421.40/732,632.10 = 338,830.60/x
  3. Step 3: Cross multiply
    488,421.40x = 732,632.10 × 338,830.60
  4. Step 4: Simplify right side
    488,421.40x = 248,238,174,022.26
  5. Step 5: Solve for x
    x = 248,238,174,022.26/488,421.40
  6. Step 6: Final answer
    x = 508,245.90

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Similar ratio
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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.