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Finding the Fourth Proportional to 723,704.80, 1,085,362.80 and 302,893.60

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Solution

The fourth proportional to 723,704.80, 1,085,362.80 and 302,893.60 is: 454,259.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,704.80 : 1,085,362.80 = 302,893.60 : x
  2. Step 2: Convert to fraction form
    723,704.80/1,085,362.80 = 302,893.60/x
  3. Step 3: Cross multiply
    723,704.80x = 1,085,362.80 × 302,893.60
  4. Step 4: Simplify right side
    723,704.80x = 328,749,445,798.08
  5. Step 5: Solve for x
    x = 328,749,445,798.08/723,704.80
  6. Step 6: Final answer
    x = 454,259.04

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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.