Home / 571,140.38-788,178.42-316,495.82

Finding the Fourth Proportional to 571,140.38, 788,178.42 and 316,495.82

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Solution

The fourth proportional to 571,140.38, 788,178.42 and 316,495.82 is: 436,766.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,140.38 : 788,178.42 = 316,495.82 : x
  2. Step 2: Convert to fraction form
    571,140.38/788,178.42 = 316,495.82/x
  3. Step 3: Cross multiply
    571,140.38x = 788,178.42 × 316,495.82
  4. Step 4: Simplify right side
    571,140.38x = 249,455,175,344.20
  5. Step 5: Solve for x
    x = 249,455,175,344.20/571,140.38
  6. Step 6: Final answer
    x = 436,766.83

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Double scale
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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.