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Finding the Fourth Proportional to 590,597.28, 815,012.88 and 322,327.20

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Solution

The fourth proportional to 590,597.28, 815,012.88 and 322,327.20 is: 444,805.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,597.28 : 815,012.88 = 322,327.20 : x
  2. Step 2: Convert to fraction form
    590,597.28/815,012.88 = 322,327.20/x
  3. Step 3: Cross multiply
    590,597.28x = 815,012.88 × 322,327.20
  4. Step 4: Simplify right side
    590,597.28x = 262,700,819,574.34
  5. Step 5: Solve for x
    x = 262,700,819,574.34/590,597.28
  6. Step 6: Final answer
    x = 444,805.33

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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.