Home / 578,749.05-798,655.14-320,615.42

Finding the Fourth Proportional to 578,749.05, 798,655.14 and 320,615.42

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Solution

The fourth proportional to 578,749.05, 798,655.14 and 320,615.42 is: 442,439.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,749.05 : 798,655.14 = 320,615.42 : x
  2. Step 2: Convert to fraction form
    578,749.05/798,655.14 = 320,615.42/x
  3. Step 3: Cross multiply
    578,749.05x = 798,655.14 × 320,615.42
  4. Step 4: Simplify right side
    578,749.05x = 256,061,149,152.98
  5. Step 5: Solve for x
    x = 256,061,149,152.98/578,749.05
  6. Step 6: Final answer
    x = 442,439.00

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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.