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Finding the Fourth Proportional to 630,090.60, 944,890.20 and 274,862.40

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Solution

The fourth proportional to 630,090.60, 944,890.20 and 274,862.40 is: 412,186.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,090.60 : 944,890.20 = 274,862.40 : x
  2. Step 2: Convert to fraction form
    630,090.60/944,890.20 = 274,862.40/x
  3. Step 3: Cross multiply
    630,090.60x = 944,890.20 × 274,862.40
  4. Step 4: Simplify right side
    630,090.60x = 259,714,788,108.48
  5. Step 5: Solve for x
    x = 259,714,788,108.48/630,090.60
  6. Step 6: Final answer
    x = 412,186.42

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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.