Home / 677,965.60-1,016,948.40-646,861.60

Finding the Fourth Proportional to 677,965.60, 1,016,948.40 and 646,861.60

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Solution

The fourth proportional to 677,965.60, 1,016,948.40 and 646,861.60 is: 970,292.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,965.60 : 1,016,948.40 = 646,861.60 : x
  2. Step 2: Convert to fraction form
    677,965.60/1,016,948.40 = 646,861.60/x
  3. Step 3: Cross multiply
    677,965.60x = 1,016,948.40 × 646,861.60
  4. Step 4: Simplify right side
    677,965.60x = 657,824,869,141.44
  5. Step 5: Solve for x
    x = 657,824,869,141.44/677,965.60
  6. Step 6: Final answer
    x = 970,292.40

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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.