Home / 823,217.60-1,234,135.20-429,233.60

Finding the Fourth Proportional to 823,217.60, 1,234,135.20 and 429,233.60

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Solution

The fourth proportional to 823,217.60, 1,234,135.20 and 429,233.60 is: 643,490.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,217.60 : 1,234,135.20 = 429,233.60 : x
  2. Step 2: Convert to fraction form
    823,217.60/1,234,135.20 = 429,233.60/x
  3. Step 3: Cross multiply
    823,217.60x = 1,234,135.20 × 429,233.60
  4. Step 4: Simplify right side
    823,217.60x = 529,732,294,782.72
  5. Step 5: Solve for x
    x = 529,732,294,782.72/823,217.60
  6. Step 6: Final answer
    x = 643,490.00

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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.