Home / 1,387,916.48-2,080,456.80-787,609.76

Finding the Fourth Proportional to 1,387,916.48, 2,080,456.80 and 787,609.76

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Solution

The fourth proportional to 1,387,916.48, 2,080,456.80 and 787,609.76 is: 1,180,610.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,916.48 : 2,080,456.80 = 787,609.76 : x
  2. Step 2: Convert to fraction form
    1,387,916.48/2,080,456.80 = 787,609.76/x
  3. Step 3: Cross multiply
    1,387,916.48x = 2,080,456.80 × 787,609.76
  4. Step 4: Simplify right side
    1,387,916.48x = 1,638,588,080,938.37
  5. Step 5: Solve for x
    x = 1,638,588,080,938.37/1,387,916.48
  6. Step 6: Final answer
    x = 1,180,610.00

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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.