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Finding the Fourth Proportional to 899,007.48, 1,240,575.48 and 491,026.68

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Solution

The fourth proportional to 899,007.48, 1,240,575.48 and 491,026.68 is: 677,586.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,007.48 : 1,240,575.48 = 491,026.68 : x
  2. Step 2: Convert to fraction form
    899,007.48/1,240,575.48 = 491,026.68/x
  3. Step 3: Cross multiply
    899,007.48x = 1,240,575.48 × 491,026.68
  4. Step 4: Simplify right side
    899,007.48x = 609,155,659,233.81
  5. Step 5: Solve for x
    x = 609,155,659,233.81/899,007.48
  6. Step 6: Final answer
    x = 677,586.86

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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.