Home / 961,105.30-1,440,673.80-561,540.40

Finding the Fourth Proportional to 961,105.30, 1,440,673.80 and 561,540.40

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Solution

The fourth proportional to 961,105.30, 1,440,673.80 and 561,540.40 is: 841,735.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,105.30 : 1,440,673.80 = 561,540.40 : x
  2. Step 2: Convert to fraction form
    961,105.30/1,440,673.80 = 561,540.40/x
  3. Step 3: Cross multiply
    961,105.30x = 1,440,673.80 × 561,540.40
  4. Step 4: Simplify right side
    961,105.30x = 808,996,541,921.52
  5. Step 5: Solve for x
    x = 808,996,541,921.52/961,105.30
  6. Step 6: Final answer
    x = 841,735.60

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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.