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Finding the Fourth Proportional to 404,756.94, 607,117.37 and 138,541.26

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Solution

The fourth proportional to 404,756.94, 607,117.37 and 138,541.26 is: 207,805.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,756.94 : 607,117.37 = 138,541.26 : x
  2. Step 2: Convert to fraction form
    404,756.94/607,117.37 = 138,541.26/x
  3. Step 3: Cross multiply
    404,756.94x = 607,117.37 × 138,541.26
  4. Step 4: Simplify right side
    404,756.94x = 84,110,805,407.69
  5. Step 5: Solve for x
    x = 84,110,805,407.69/404,756.94
  6. Step 6: Final answer
    x = 207,805.72

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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.