Home / 571,145.38-788,185.29-316,500.82

Finding the Fourth Proportional to 571,145.38, 788,185.29 and 316,500.82

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Solution

The fourth proportional to 571,145.38, 788,185.29 and 316,500.82 is: 436,773.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,145.38 : 788,185.29 = 316,500.82 : x
  2. Step 2: Convert to fraction form
    571,145.38/788,185.29 = 316,500.82/x
  3. Step 3: Cross multiply
    571,145.38x = 788,185.29 × 316,500.82
  4. Step 4: Simplify right side
    571,145.38x = 249,461,290,596.94
  5. Step 5: Solve for x
    x = 249,461,290,596.94/571,145.38
  6. Step 6: Final answer
    x = 436,773.72

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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.