Home / 948,636.72-1,309,101.48-518,913.09

Finding the Fourth Proportional to 948,636.72, 1,309,101.48 and 518,913.09

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Solution

The fourth proportional to 948,636.72, 1,309,101.48 and 518,913.09 is: 716,090.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,636.72 : 1,309,101.48 = 518,913.09 : x
  2. Step 2: Convert to fraction form
    948,636.72/1,309,101.48 = 518,913.09/x
  3. Step 3: Cross multiply
    948,636.72x = 1,309,101.48 × 518,913.09
  4. Step 4: Simplify right side
    948,636.72x = 679,309,894,110.37
  5. Step 5: Solve for x
    x = 679,309,894,110.37/948,636.72
  6. Step 6: Final answer
    x = 716,090.66

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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.