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Finding the Fourth Proportional to 571,163.84, 788,186.08 and 316,538.72

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Solution

The fourth proportional to 571,163.84, 788,186.08 and 316,538.72 is: 436,812.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,163.84 : 788,186.08 = 316,538.72 : x
  2. Step 2: Convert to fraction form
    571,163.84/788,186.08 = 316,538.72/x
  3. Step 3: Cross multiply
    571,163.84x = 788,186.08 × 316,538.72
  4. Step 4: Simplify right side
    571,163.84x = 249,491,412,885.02
  5. Step 5: Solve for x
    x = 249,491,412,885.02/571,163.84
  6. Step 6: Final answer
    x = 436,812.34

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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.