Home / 730,286.66-1,007,842.96-407,998.60

Finding the Fourth Proportional to 730,286.66, 1,007,842.96 and 407,998.60

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Solution

The fourth proportional to 730,286.66, 1,007,842.96 and 407,998.60 is: 563,064.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,286.66 : 1,007,842.96 = 407,998.60 : x
  2. Step 2: Convert to fraction form
    730,286.66/1,007,842.96 = 407,998.60/x
  3. Step 3: Cross multiply
    730,286.66x = 1,007,842.96 × 407,998.60
  4. Step 4: Simplify right side
    730,286.66x = 411,198,516,699.86
  5. Step 5: Solve for x
    x = 411,198,516,699.86/730,286.66
  6. Step 6: Final answer
    x = 563,064.53

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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.