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Finding the Fourth Proportional to 750,740.72, 1,036,022.44 and 411,221.20

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Solution

The fourth proportional to 750,740.72, 1,036,022.44 and 411,221.20 is: 567,485.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,740.72 : 1,036,022.44 = 411,221.20 : x
  2. Step 2: Convert to fraction form
    750,740.72/1,036,022.44 = 411,221.20/x
  3. Step 3: Cross multiply
    750,740.72x = 1,036,022.44 × 411,221.20
  4. Step 4: Simplify right side
    750,740.72x = 426,034,391,003.73
  5. Step 5: Solve for x
    x = 426,034,391,003.73/750,740.72
  6. Step 6: Final answer
    x = 567,485.39

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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.