Home / 726,809.60-1,090,214.40-646,630.40

Finding the Fourth Proportional to 726,809.60, 1,090,214.40 and 646,630.40

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Solution

The fourth proportional to 726,809.60, 1,090,214.40 and 646,630.40 is: 969,945.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,809.60 : 1,090,214.40 = 646,630.40 : x
  2. Step 2: Convert to fraction form
    726,809.60/1,090,214.40 = 646,630.40/x
  3. Step 3: Cross multiply
    726,809.60x = 1,090,214.40 × 646,630.40
  4. Step 4: Simplify right side
    726,809.60x = 704,965,773,557.76
  5. Step 5: Solve for x
    x = 704,965,773,557.76/726,809.60
  6. Step 6: Final answer
    x = 969,945.60

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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.