Home / 571,618.95-788,777.30-329,979.36

Finding the Fourth Proportional to 571,618.95, 788,777.30 and 329,979.36

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Solution

The fourth proportional to 571,618.95, 788,777.30 and 329,979.36 is: 455,338.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,618.95 : 788,777.30 = 329,979.36 : x
  2. Step 2: Convert to fraction form
    571,618.95/788,777.30 = 329,979.36/x
  3. Step 3: Cross multiply
    571,618.95x = 788,777.30 × 329,979.36
  4. Step 4: Simplify right side
    571,618.95x = 260,280,226,986.63
  5. Step 5: Solve for x
    x = 260,280,226,986.63/571,618.95
  6. Step 6: Final answer
    x = 455,338.70

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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.