Home / 578,830.40-868,245.60-325,851.20

Finding the Fourth Proportional to 578,830.40, 868,245.60 and 325,851.20

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Solution

The fourth proportional to 578,830.40, 868,245.60 and 325,851.20 is: 488,776.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,830.40 : 868,245.60 = 325,851.20 : x
  2. Step 2: Convert to fraction form
    578,830.40/868,245.60 = 325,851.20/x
  3. Step 3: Cross multiply
    578,830.40x = 868,245.60 × 325,851.20
  4. Step 4: Simplify right side
    578,830.40x = 282,918,870,654.72
  5. Step 5: Solve for x
    x = 282,918,870,654.72/578,830.40
  6. Step 6: Final answer
    x = 488,776.80

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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.