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Finding the Fourth Proportional to 794,625.80, 1,191,017.10 and 321,000.20

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Solution

The fourth proportional to 794,625.80, 1,191,017.10 and 321,000.20 is: 481,128.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    794,625.80 : 1,191,017.10 = 321,000.20 : x
  2. Step 2: Convert to fraction form
    794,625.80/1,191,017.10 = 321,000.20/x
  3. Step 3: Cross multiply
    794,625.80x = 1,191,017.10 × 321,000.20
  4. Step 4: Simplify right side
    794,625.80x = 382,316,727,303.42
  5. Step 5: Solve for x
    x = 382,316,727,303.42/794,625.80
  6. Step 6: Final answer
    x = 481,128.01

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Double scale
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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.