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Finding the Fourth Proportional to 657,039.99, 906,715.04 and 370,559.46

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Solution

The fourth proportional to 657,039.99, 906,715.04 and 370,559.46 is: 511,371.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,039.99 : 906,715.04 = 370,559.46 : x
  2. Step 2: Convert to fraction form
    657,039.99/906,715.04 = 370,559.46/x
  3. Step 3: Cross multiply
    657,039.99x = 906,715.04 × 370,559.46
  4. Step 4: Simplify right side
    657,039.99x = 335,991,833,743.48
  5. Step 5: Solve for x
    x = 335,991,833,743.48/657,039.99
  6. Step 6: Final answer
    x = 511,371.97

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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.