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Finding the Fourth Proportional to 571,171.84, 788,197.12 and 316,546.72

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Solution

The fourth proportional to 571,171.84, 788,197.12 and 316,546.72 is: 436,823.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,171.84 : 788,197.12 = 316,546.72 : x
  2. Step 2: Convert to fraction form
    571,171.84/788,197.12 = 316,546.72/x
  3. Step 3: Cross multiply
    571,171.84x = 788,197.12 × 316,546.72
  4. Step 4: Simplify right side
    571,171.84x = 249,501,213,049.45
  5. Step 5: Solve for x
    x = 249,501,213,049.45/571,171.84
  6. Step 6: Final answer
    x = 436,823.38

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Double scale
Find fourth proportional to 571,172.84, 788,198.50 and 316,547.72
Similar ratio
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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.