Home / 1,212,461.43-1,673,237.18-661,207.31

Finding the Fourth Proportional to 1,212,461.43, 1,673,237.18 and 661,207.31

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Solution

The fourth proportional to 1,212,461.43, 1,673,237.18 and 661,207.31 is: 912,488.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,461.43 : 1,673,237.18 = 661,207.31 : x
  2. Step 2: Convert to fraction form
    1,212,461.43/1,673,237.18 = 661,207.31/x
  3. Step 3: Cross multiply
    1,212,461.43x = 1,673,237.18 × 661,207.31
  4. Step 4: Simplify right side
    1,212,461.43x = 1,106,356,660,615.90
  5. Step 5: Solve for x
    x = 1,106,356,660,615.90/1,212,461.43
  6. Step 6: Final answer
    x = 912,488.13

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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.