Home / 1,296,434.60-1,788,865.78-723,473.40

Finding the Fourth Proportional to 1,296,434.60, 1,788,865.78 and 723,473.40

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Solution

The fourth proportional to 1,296,434.60, 1,788,865.78 and 723,473.40 is: 998,273.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,434.60 : 1,788,865.78 = 723,473.40 : x
  2. Step 2: Convert to fraction form
    1,296,434.60/1,788,865.78 = 723,473.40/x
  3. Step 3: Cross multiply
    1,296,434.60x = 1,788,865.78 × 723,473.40
  4. Step 4: Simplify right side
    1,296,434.60x = 1,294,196,808,000.25
  5. Step 5: Solve for x
    x = 1,294,196,808,000.25/1,296,434.60
  6. Step 6: Final answer
    x = 998,273.89

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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.