Home / 940,823.72-1,298,543.35-618,563.80

Finding the Fourth Proportional to 940,823.72, 1,298,543.35 and 618,563.80

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Solution

The fourth proportional to 940,823.72, 1,298,543.35 and 618,563.80 is: 853,753.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    940,823.72 : 1,298,543.35 = 618,563.80 : x
  2. Step 2: Convert to fraction form
    940,823.72/1,298,543.35 = 618,563.80/x
  3. Step 3: Cross multiply
    940,823.72x = 1,298,543.35 × 618,563.80
  4. Step 4: Simplify right side
    940,823.72x = 803,231,906,625.15
  5. Step 5: Solve for x
    x = 803,231,906,625.15/940,823.72
  6. Step 6: Final answer
    x = 853,753.89

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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.