Home / 571,135.38-788,171.52-316,490.82

Finding the Fourth Proportional to 571,135.38, 788,171.52 and 316,490.82

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Solution

The fourth proportional to 571,135.38, 788,171.52 and 316,490.82 is: 436,759.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,135.38 : 788,171.52 = 316,490.82 : x
  2. Step 2: Convert to fraction form
    571,135.38/788,171.52 = 316,490.82/x
  3. Step 3: Cross multiply
    571,135.38x = 788,171.52 × 316,490.82
  4. Step 4: Simplify right side
    571,135.38x = 249,449,050,665.45
  5. Step 5: Solve for x
    x = 249,449,050,665.45/571,135.38
  6. Step 6: Final answer
    x = 436,759.93

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Double scale
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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.