Home / 1,247,455.40-1,721,489.10-674,495.60

Finding the Fourth Proportional to 1,247,455.40, 1,721,489.10 and 674,495.60

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Solution

The fourth proportional to 1,247,455.40, 1,721,489.10 and 674,495.60 is: 930,804.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,455.40 : 1,721,489.10 = 674,495.60 : x
  2. Step 2: Convert to fraction form
    1,247,455.40/1,721,489.10 = 674,495.60/x
  3. Step 3: Cross multiply
    1,247,455.40x = 1,721,489.10 × 674,495.60
  4. Step 4: Simplify right side
    1,247,455.40x = 1,161,136,823,397.96
  5. Step 5: Solve for x
    x = 1,161,136,823,397.96/1,247,455.40
  6. Step 6: Final answer
    x = 930,804.28

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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.