Home / 571,618.81-788,777.11-329,979.23

Finding the Fourth Proportional to 571,618.81, 788,777.11 and 329,979.23

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Solution

The fourth proportional to 571,618.81, 788,777.11 and 329,979.23 is: 455,338.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,618.81 : 788,777.11 = 329,979.23 : x
  2. Step 2: Convert to fraction form
    571,618.81/788,777.11 = 329,979.23/x
  3. Step 3: Cross multiply
    571,618.81x = 788,777.11 × 329,979.23
  4. Step 4: Simplify right side
    571,618.81x = 260,280,065,406.67
  5. Step 5: Solve for x
    x = 260,280,065,406.67/571,618.81
  6. Step 6: Final answer
    x = 455,338.53

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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.