Home / 971,402.11-1,456,221.07-339,971.47

Finding the Fourth Proportional to 971,402.11, 1,456,221.07 and 339,971.47

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Solution

The fourth proportional to 971,402.11, 1,456,221.07 and 339,971.47 is: 509,648.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,402.11 : 1,456,221.07 = 339,971.47 : x
  2. Step 2: Convert to fraction form
    971,402.11/1,456,221.07 = 339,971.47/x
  3. Step 3: Cross multiply
    971,402.11x = 1,456,221.07 × 339,971.47
  4. Step 4: Simplify right side
    971,402.11x = 495,073,613,322.39
  5. Step 5: Solve for x
    x = 495,073,613,322.39/971,402.11
  6. Step 6: Final answer
    x = 509,648.49

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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.