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Finding the Fourth Proportional to 570,664.08, 787,515.72 and 316,014.96

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Solution

The fourth proportional to 570,664.08, 787,515.72 and 316,014.96 is: 436,100.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,664.08 : 787,515.72 = 316,014.96 : x
  2. Step 2: Convert to fraction form
    570,664.08/787,515.72 = 316,014.96/x
  3. Step 3: Cross multiply
    570,664.08x = 787,515.72 × 316,014.96
  4. Step 4: Simplify right side
    570,664.08x = 248,866,748,755.17
  5. Step 5: Solve for x
    x = 248,866,748,755.17/570,664.08
  6. Step 6: Final answer
    x = 436,100.25

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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.