Home / 899,685.09-1,241,565.30-491,788.58

Finding the Fourth Proportional to 899,685.09, 1,241,565.30 and 491,788.58

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Solution

The fourth proportional to 899,685.09, 1,241,565.30 and 491,788.58 is: 678,668.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,685.09 : 1,241,565.30 = 491,788.58 : x
  2. Step 2: Convert to fraction form
    899,685.09/1,241,565.30 = 491,788.58/x
  3. Step 3: Cross multiply
    899,685.09x = 1,241,565.30 × 491,788.58
  4. Step 4: Simplify right side
    899,685.09x = 610,587,629,656.45
  5. Step 5: Solve for x
    x = 610,587,629,656.45/899,685.09
  6. Step 6: Final answer
    x = 678,668.17

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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.