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Finding the Fourth Proportional to 571,144.88, 788,184.60 and 316,500.32

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Solution

The fourth proportional to 571,144.88, 788,184.60 and 316,500.32 is: 436,773.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,144.88 : 788,184.60 = 316,500.32 : x
  2. Step 2: Convert to fraction form
    571,144.88/788,184.60 = 316,500.32/x
  3. Step 3: Cross multiply
    571,144.88x = 788,184.60 × 316,500.32
  4. Step 4: Simplify right side
    571,144.88x = 249,460,678,119.07
  5. Step 5: Solve for x
    x = 249,460,678,119.07/571,144.88
  6. Step 6: Final answer
    x = 436,773.03

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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.