Home / 861,393.44-1,292,294.64-270,417.44

Finding the Fourth Proportional to 861,393.44, 1,292,294.64 and 270,417.44

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Solution

The fourth proportional to 861,393.44, 1,292,294.64 and 270,417.44 is: 405,690.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,393.44 : 1,292,294.64 = 270,417.44 : x
  2. Step 2: Convert to fraction form
    861,393.44/1,292,294.64 = 270,417.44/x
  3. Step 3: Cross multiply
    861,393.44x = 1,292,294.64 × 270,417.44
  4. Step 4: Simplify right side
    861,393.44x = 349,459,008,274.52
  5. Step 5: Solve for x
    x = 349,459,008,274.52/861,393.44
  6. Step 6: Final answer
    x = 405,690.35

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1.5x scale

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.