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Finding the Fourth Proportional to 507,000.80, 699,837.20 and 313,556.60

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Solution

The fourth proportional to 507,000.80, 699,837.20 and 313,556.60 is: 432,817.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,000.80 : 699,837.20 = 313,556.60 : x
  2. Step 2: Convert to fraction form
    507,000.80/699,837.20 = 313,556.60/x
  3. Step 3: Cross multiply
    507,000.80x = 699,837.20 × 313,556.60
  4. Step 4: Simplify right side
    507,000.80x = 219,438,572,985.52
  5. Step 5: Solve for x
    x = 219,438,572,985.52/507,000.80
  6. Step 6: Final answer
    x = 432,817.02

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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.