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Finding the Fourth Proportional to 657,131.37, 906,883.61 and 370,645.31

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Solution

The fourth proportional to 657,131.37, 906,883.61 and 370,645.31 is: 511,514.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,131.37 : 906,883.61 = 370,645.31 : x
  2. Step 2: Convert to fraction form
    657,131.37/906,883.61 = 370,645.31/x
  3. Step 3: Cross multiply
    657,131.37x = 906,883.61 × 370,645.31
  4. Step 4: Simplify right side
    657,131.37x = 336,132,156,762.37
  5. Step 5: Solve for x
    x = 336,132,156,762.37/657,131.37
  6. Step 6: Final answer
    x = 511,514.40

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1.5x scale

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.